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AU6256
USB2.0 Hub Controller
Technical Reference Manual
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AU6256
USB2.0 Hub Controller
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Copyright
Copyright (c) 1997 - 2008. Alcor Micro, Corp. All Rights Reserved. No part of this data sheet may be reproduced, transmitted, transcribed, stored in a retrieval system or translated into any language or computer language, in any form or by any means, electronic, mechanical, magnetic, optical, chemical, manual or otherwise, without prior written permission from Alcor Micro, Corp.
Trademark Acknowledgements
The company and product names mentioned in this document may be the trademarks or registered trademarks of their manufacturers.
Disclaimer
Alcor Micro, Corp. reserves the right to change this product without prior notice. Alcor Micro, Corp. makes no warranty for the use of its products and bears no responsibility for any error that appear in this document. Specifications are subject to change without prior notice.
Revision History
Date
Jan 2008 Apr 2008
Revision
0.9 1.00
Description
Preliminary Release. Official Release
Contact Information:
Web site: http://www.alcormicro.com/
China ShenZhen Office Rm.2407-08, Industrial Bank Building No.4013, Shennan Road, ShenZhen,China. 518026 Phone: (0755) 8366-9039 Fax: (0755) 8366-9101 Los Angeles Office 9070 Rancho Park Court Rancho Cucamonga, CA 91730 USA Phone: (909) 483-8821 Fax: (909) 944-0464
Taiwan Alcor Micro, Corp. 4F, No 200 Kang Chien Rd., Nei Hu, Taipei, Taiwan, R.O.C. Phone: 886-2-8751-1984 Fax: 886-2-2659-7723 San Jose Office 2025 Gateway Place, Suite 335 San Jose, CA 95110 www..com USA Phone: (408) 453-9530 Fax: (408) 453-9523

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Table of Contents
1. Introduction ............................................................ 1
1.1 Description...................................................................................1 1.2 Features........................................................................................1
2. Application Block Diagram ................................... 2 3. Pin Assignment ...................................................... 3 4. System Architecture and Reference Design ....... 6
4.1 AU6256 Block Diagram ...............................................................6 4.2 USB 2.0 Hub Descriptor ..............................................................7
5. Electrical Characteristics ...................................... 12
5.1 Absolute Maximum Ratings........................................................12 5.2 Recommended Operating Conditions .......................................12 5.3 General DC Characteristics ........................................................12 5.4 DC Electrical Characteristics of 3.3V I/O Cells..........................13 5.5 Crystal Oscillator Circuit Setup for Characterization ...............13 5.6 Bus Timing/Electrical Characteristics .......................................14
6. Mechanical Information ......................................... 18 7. Abbreviations ......................................................... 19
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List of Figures
Figure 2.1 Block Diagram..................................................................2 Figure 3.1 48 LQFP Pin Assignment Diagram.................................3 Figure 4.1 AU6256 Block Diagram ...................................................6 Figure 5.1 Crystal Oscillator Circuit Setup for Characterization ...13 Figure 6.1 48LQFP Mechanical Information Diagram .....................18
List of Tables
Table 3.1 48 LQFP Pin Descriptions ................................................4 Table 4.1 Hub EEPROM Sample Value.............................................7 Table 5.1 Absolute Maximum Ratings .............................................12 Table 5.2 Recommended Operating Conditions .............................12 Table 5.3 General DC Characteristics ..............................................12 Table 5.4 DC Electrical Characteristics of 3.3V I/O Cells ...............13 Table 5.5 DC Electrical Characteristics ...........................................14 Table 5.6 High-speed Source Electrical Characteristics ................15 Table 5.7 Full-speed Source Electrical Characteristics..................15 Table 5.8 Low-speed Source Electrical Characteristics.................16
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1. Introduction
1.1 Description
AU6256 is a fully compliant with the USB 2.0 hub specification and is designed to work with USB host as a high-speed hub. Its built-in TT (Transaction Translator) allows system to benefit combinational performance under the unbalanced traffic condition. AU6256 supports four USB downstream ports and one upstream port. Each downstream port could be a device of high-speed, full-speed or low-speed traffic, while the upstream port supports both high-speed and full-speed traffic. For each downstream port it has individual power switch control built-in as over-current sensing control. In addition to the application as a stand-alone hub, AU6256 is also very suitable for using in notebook and motherboard design to provide additional USB port. All these product advantages should be attributed to its compliance to standards, performance and low power consumption.
1.2 Features
Fully compliant with USB Hub Specification version 2.0 and is also backward compatible with USB Hub specification 1.1. Single chip USB 2.0 hub controller. Supports four bus-powered/self-powered downstream ports. Supports automatic switching between bus- and self-powered modes. Cost effective design using one transaction translator for all downstream ports. Two-color LED controls available for each downstream port to indicate the status of each device port. Extra low power consumption. On chip internal pull-up and meets USB bus power regain emend pull down resistors for all data line. Built-in USB 2.0 transceiver. Supports individual and gang modes of power management. Built-in power switch control for over current sensing control. Built-in 1.8V regulator for core logic. Embedded in PLL (Phase Lock Loop) circuit for 12MHz operation precision Supports external EEPROM interface for customized PID and VID 5 3.3 regulators built in Available in 48-pin LQFP package
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AU6256 USB2.0 HUB Controller V1.00
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2. Application Block Diagram
AU6256 is a single chip 4-port USB hub controller. Its upstream port is connected to a USB Host system. The downstream ports can be used for a mouse, joystick, scanner, printer or other devices.
Figure 2.1 Block Diagram
USB HOST SYSTEM
PRINTER
Scanner
Printer
ALCOR MICRO AU6256
USB DOWNSTREAM PORTS
USB DOWNSTREAM PORTS
Keyboard
Mouse
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AU6256 USB2.0 HUB Controller V1.00
3. Pin Assignment
AU6254 is available in 48-pin LQFP package. Below diagram shows signal name of each pin and table in the following page describes each pin in detail.
Figure 3.1 48 LQFP Pin Assignment Diagram
GANGBUS_PWRED
USB1_DM
USB1_DP
UP_RREF
USB_DM
USB_DP
AVDD
AVDD
48 XSCI PVSS AVSS DP2_DM DP2_DP AVDD AVSS DP3_DM DP3_DP DP4_DM DP4_DP AVDD 1
XSCO 2 3 4 5 6 7 8 9 10 11 12 13 V18
PVDD 47 14 AVDD5V
AVSS
AVSS
46
45
44
43
42
41
40
39
38
37 36 ChipResetN VDD SUSPEND DP1_LEDGR DP2_LEDGR DP3_LEDGR DP4_LEDGR DP4_PWRUP DP4_OVRCUR DP3_OVRCUR DP3_PWRUP DP2_PWRUP
35
34
33
32
ALCOR MICRO AU6256-JDL 48PIN LQFP
31
30
29
28
27
26
25 15 16 17 18 19 20 21 22 23 24
VDDH
VSSH
BUS_PWREDN
EEPENABLE
E2PCLK
E2PDAT
VDD
DP1_PWRUP
DP1_OVRCUR
DP2_OVRCUR
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Table 3.1 48 LQFP Pin Descriptions Pin #
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22
Pin Name
XSCI PVSS AVSS DP2_DM DP2_DP AVDD AVSS DP3_DM DP3_DP DP4_DM DP4_DP AVDD V18 AVDD5V VDDH VSSH BUS_PWREDN EEPENABLE E2PCLK E2PDAT VDD DP1_PWRUP
I/O
UTMI UTMI UTMI UTMI UTMI UTMI UTMI UTMI UTMI UTMI UTMI UTMI Power Power Power Power O I I/O I/O Power O OSC GND UTMI GND Port2 USB bus Port2 USB bus UTMI Power UTMI GND Port3 USB bus Port3 USB bus Port4 USB bus Port4 USB bus UTMI Power
Description
12MHz Crystal oscillator input
Voltage regulator output 1.8V Voltage regulator input 5V IO power input 3.3V IO GND 1' = Self Powered '0' = Bus Powered EEPControl '0' = Use internal ROM '1' = Use EEP contents EEP Clock EEP Data Care Power Port1 PowerEnable '0' = power on '1' = power off Port 1 Overcurrent '0' = overcurrent '1' = not overcurrent Port 2 Overcurrent '0' = overcurrent '1' = not overcurrent Port2 PowerEnable '0' = power on '1' = power off Port3 PowerEnable '0' = power on '1' = power off
23
DP1_OVRCUR
I
24
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DP2_OVRCUR
I
DP2_PWRUP
O
26
DP3_PWRUP
O
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AU6256 USB2.0 HUB Controller V1.00
Pin #
27
Pin Name
DP3_OVRCUR
I/O
I
Description
Port3 Overcurrent '0' = overcurrent '1' = not overcurrent Port4 Overcurrent '0' = overcurrent '1' = not overcurrent Port4 PowerEnable '0' = power on '1' = power off Port4 Green LED indicator '0' = LED on (Fully operational) '1/Z' = LED off Port3 Green LED indicator '0' = LED on (Fully operational) '1' = LED off Port2 Green LED '0' = LED on (Fully operational) '1' = LED off Port1 Green LED indicator '0' = LED on (Fully operational) '1' = LED off 0' = Not Suspended '1' = Suspended Care Power 0' = Reset '1' = Run 1' = Individual Power '0' = Gang powered UTMI GND Upstream port USB bus Upstream port USB bus UTMI Power UTMI GND Port1 USB bus Port1 USB bus UTMI Power Reference resistor OSC VDD 12MHz Crystal oscillator output
28
DP4_OVRCUR
I
29
DP4_PWRUP
O
30
DP4_LEDGR
O
31
DP3_LEDGR
O
32
DP2_LEDGR
O
33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48
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DP1_LEDGR SUSPEND VDD ChipResetN GANGBUS_PW RED AVSS USB_DM USB_DP AVDD AVSS USB1_DM USB1_DP AVDD UP_RREF PVDD XSCO
O O Power I I UTMI UTMI UTMI UTMI UTMI UTMI UTMI UTMI UTMI UTMI UTMI
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4. System Architecture and Reference Design
4.1 AU6256 Block Diagram
Figure 4.1 AU6256 Block Diagram
SUSPEND LED
Upstream USB Data
Bus_PWREDN
Gangbus_pwred
Upstream PHY
HS
HS TPX
FS
E2PDAT
SIE
5V
Controller
Serial Interface
To EEPROM
EEPENABLE
E2PCLK
3.3V
Regulator
TT
Port Controller
1.8V
Routing Logic
DLL Elasticity buffer HS
HS TPX
FS
PLL
Downstream PHY #1
Port #1 Over Current Sense LED Drivers
DLL Elasticity buffer HS
HS TPX
FS
...
Downstream PHY #4
Port #4 Over Current Sense LED Drivers
12MHz Crystal
Downstream USB Data
Over current detect
LED Drivers
Downstream USB Data
over current detect
LED Drivers
PWRUP
PWRUP
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AU6256 USB2.0 HUB Controller V1.00
4.2 USB 2.0 Hub Descriptor
Table 4.1 Hub EEPROM Sample Value
OFFSET (BYTE, HEX) 0 2 4 LENGTH (BYTE, HEX) 2 2 2 VALUES (HEX) 01,00 1A,2C 2C,45 DESCRIPTION Configuration Byte 1 bit 0 : EnablePortError LoByte : Pointer to Hub FS device descriptor 000h ROM address HiByte : Xfer end address + 1 LoByte : Pointer to Hub FS configuration descriptor HiByte : Xfer end address + 1 (config+interface+endpoint) 000h ROM address LoByte : Pointer to Hub FS Device Qualifier descriptor HiByte : Xfer end address + 1 000h ROM address LoByte : Pointer to Hub FS Other Speed Configuration descriptor HiByte : Xfer end address + 1 (config+interface+endpoint) 000h ROM address LoByte : Pointer to Hub HS device descriptor 000h ROM address HiByte : Xfer end address + 1 LoByte : Pointer to Hub HS configuration descriptor HiByte : Xfer end address + 1 (config+interface+endpoint) 000h ROM address LoByte : Pointer to Hub HS Device Qualifier descriptor HiByte : Xfer end address + 1 000h ROM address LoByte : Pointer to Hub HS Other Speed Configuration descriptor HiByte : Xfer end address + 1 (config+interface+endpoint) 000h ROM address LoByte : Pointer to HUB Class descriptor (0x29) 000h ROM address HiByte : Xfer end address + 1 Individual power LoByte : Pointer to HUB Class descriptor (0x29) 000h ROM address HiByte : Xfer end address + 1 Gang Power LoByte : Pointer to Special Command Data 000h ROM address HiByte : Xfer end address + 1 Hub FS device descriptor, version 2.0, 12 Descriptor length 01 Device Descriptor 00 02 USB Version 2.0 09 Hub class 00 Sub-class 00 Device Protocol 40h Maximum packet size 8F 05 Vender ID - Alcor 54 62 Product ID - 6254 01 00 Device release number 00 Index of Manufacturer string descriptor 00 Index of Product string descriptor 00 Index of serial number string descriptor - no serial number 01 Number of configuration Hub FS Config Desc. 1 interface, self powered, remote wakeup,500 mA Total bytes returned : 0x19 Hub FS interface descriptor, interface 0. Class code 0x9 Hub FS endpoint descriptor Hub FS Device Qualifier descriptor - USB 2.00,
6 8
2 2
45,4F 4F,68
A C
2 2
78,8A 8A,A3
E
2
B3,BD
10
2
BD,D6
12 14 16 18 1A
2 2 2 2 12
D6,DF DF,E8 18,1A 01,00 12,01,00,02,09 ,00,00,40,8F,0 5,54,62,00,01, 00,00,00,01
2C 35 3E
9 9 7 A
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4F
9
09,02,19,00,01 ,01,00,E0,FA 09,04,00,00,01 ,09,00,00,00 07,05,81,03,01 ,00,FF 0A,06,00,02,09 ,00,01,40,01,0 0 09,07,19,00,01 ,01,00,E0,FA
Hub FS Other Speed Config Desc. 1 interface, self powered, remote wakeup, 500 mA Total bytes returned : 0x19
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OFFSET (BYTE, HEX) 58 61 68 71 78
LENGTH (BYTE, HEX) 9 7 9 7 12
VALUES (HEX) 09,04,00,00,01 ,09,00,00,00 07,05,81,03,01 ,00,0C 09,04,00,01,01 ,09,00,02,00 07,05,81,03,01 ,00,0C 12,01,00,02,09 ,00,01,40,8F,0 5,54,62,00,01, 00,00,00,01
DESCRIPTION Hub FS Other speed interface descriptor, interface 0. Class code 0x9, single TT Hub FS Other speed endpoint descriptor Hub FS Other speed interface descriptor, interface 0. Class code 0x9, single TT Hub FS Other speed endpoint descriptor Hub HS device descriptor, version 2.0, 12 Descriptor length 01 Device Descriptor 00 02 USB Version 2.0 09 Hub class 01 Sub-class - (single TTs) 00 Device Protocol 40h Maximum packet size 8F 05 Vender ID - Alcor 54 62 Product ID - 6254 01 00 Device release number 00 Index of Manufacturer string descriptor 00 Index of Product string descriptor 00 Index of serial number string descriptor - no serial number 01 Number of configuration Hub HS Config Desc. 1 interface, self powered, remote wakeup, 500 mA Total bytes returned : 0x19 Hub HS interface descriptor, interface 0. Class code 0x9, single TT Hub HS endpoint descriptor Hub HS interface descriptor, interface 0. Class code 0x9, formultipleTT Hub HS endpoint descriptor Hub HS Device Qualifier descriptor - USB 2.00,
8A
9
09,02,19,00,01 ,01,00,E0,FA 09,04,00,00,01 ,09,00,00,00 07,05,81,03,01 ,00,0C 09,04,00,01,01 ,09,00,02,00 07,05,81,03,01 ,00,0C 0A,06,00,02,09 ,00,00,40,01,0 0 09,07,19,00,01 ,01,00,E0,FA
93 9C A3 AC B3
9 7 9 7 A
BD
9
Hub HS Other speed Config Desc. 1 interface, self powered, remote wakeup, 500 mA Total bytes returned : 0x19 Hub HS Other speed interface descriptor, interface 0. Class code 0x9 Hub HS Other speed endpoint descriptor Hub class descriptor. 09 Descriptor length 29 Hub Descriptor 04 Number of downstream port -4 external ports A9 00 Individual Over-current sensing, individual power switch, 8 FS bit TT think time, port indicators supported 32 Power good wait time 32hx2 mS (=100ms) 64 Maximum current required (=100mA) 00 No ports are not removable FF Port power control mask Hub class descriptor. 09 Descriptor length 29 Hub Descriptor 04 Number of downstream port - 4 external ports A0 00 Global Over-current sensing, gang power switch, 8 FS bit TT think time, port indicators supported 32 Power good wait time 32hx2 mS (=100ms) 64 Maximum current required (=100mA)
C6 CF D6
9 7 9
09,04,00,00,01 ,09,00,00,00 07,05,81,03,01 ,00,FF 09,29,04,89,00 ,32,64,00,FF
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09,29,04,80,00 ,32,64,00,FF
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AU6256 USB2.0 HUB Controller V1.00
OFFSET (BYTE, HEX)
LENGTH (BYTE, HEX)
VALUES (HEX)
DESCRIPTION 00 No ports are not removable FF Port power control mask Spare bytes
E8
18
100 102 104
2 2 2
00,00,00,00,00 ,00,00,00, 00,00,00,00,00 ,00,00,00, 00,00,00,00,00 ,00,00,00, 01,00 1A,2C 2C,45
Configuration
106 108
2 2
45,4F 4F,68
10A 10C
2 2
78,8A 8A,A3
10E 110
2 2
B3,BD BD,D6
112 114 116 118 11A
2 2 2 2 12
D6,DF DF,E8 18,1A 01,00 12,01,00,02,09 ,00,00,40,8F,0 5,54,62,00,01, 00,00,00,01
Byte 1 bit 0 : EnablePortError Byte 1 bit 1 : LoByte : Pointer to Hub FS device descriptor 000h ROM address HiByte : Xfer end address + 1 LoByte : Pointer to Hub FS configuration descriptor HiByte : Xfer end address + 1 (config+interface+endpoint) 000h ROM address LoByte : Pointer to Hub FS Device Qualifier descriptor HiByte : Xfer end address + 1 000h ROM address LoByte : Pointer to Hub FS Other Speed Configuration descriptor HiByte : Xfer end address + 1 (config+interface+endpoint) 000h ROM address LoByte : Pointer to Hub HS device descriptor 000h ROM address HiByte : Xfer end address + 1 LoByte : Pointer to Hub HS configuration descriptor HiByte : Xfer end address + 1 (config+interface+endpoint) 000h ROM address LoByte : Pointer to Hub HS Device Qualifier descriptor HiByte : Xfer end address + 1 000h ROM address LoByte : Pointer to Hub HS Other Speed Configuration descriptor HiByte : Xfer end address + 1 (config+interface+endpoint) 000h ROM address LoByte : Pointer to HUB Class descriptor (0x29) 000h ROM address HiByte : Xfer end address + 1 Individual power LoByte : Pointer to HUB Class descriptor (0x29) 000h ROM address HiByte : Xfer end address + 1 Gang Power LoByte : Pointer to Special Command Data 000h ROM address HiByte : Xfer end address + 1 Hub FS device descriptor, version 2.0, 12 Descriptor length 01 Device Descriptor 00 02 USB Version 2.0 09 Hub class 00 Sub-class 00 Device Protocol 40h Maximum packet size 8F 05 Vender ID - Alcor 54 62 Product ID - 6254 01 00 Device release number 00 Index of Manufacturer string descriptor 00 Index of Product string descriptor 00 Index of serial number string descriptor - no serial number 01 Number of configuration Hub FS Config Desc. 1 interface, self powered, remote wakeup,100 mA Total bytes returned : 0x19 Hub FS interface descriptor, interface 0. Class code 0x9 Hub FS endpoint descriptor Hub FS Device Qualifier descriptor - USB 2.00,
12C
9
09,02,19,00,01 ,01,00,E0,32 09,04,00,00,01 ,09,00,00,00 07,05,81,03,01 ,00,FF 0A,06,00,02,09 ,00,01,40,01,0 0 09,07,19,00,01 ,01,00,E0,32
135
9 7 A
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145
14F
9
Hub FS Other Speed Config Desc. 1 interface, self powered, remote wakeup, 100 mA
AU6256 USB2.0 HUB Controller V1.00
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OFFSET (BYTE, HEX)
LENGTH (BYTE, HEX)
VALUES (HEX) Total bytes returned : 0x19
DESCRIPTION
158 161 168 171 178
9 7 9 7 12
09,04,00,00,01 ,09,00,00,00 07,05,81,03,01 ,00,0C 09,04,00,01,01 ,09,00,02,00 07,05,81,03,01 ,00,0C 12,01,00,02,09 ,00,01,40,8F,0 5,54,62,00,01, 00,00,00,01
Hub FS Other speed interface descriptor, interface 0. Class code 0x9, single TT Hub FS Other speed endpoint descriptor Hub FS Other speed interface descriptor, interface 0. Class code 0x9, single TT Hub FS Other speed endpoint descriptor Hub HS device descriptor, version 2.0, 12 Descriptor length 01 Device Descriptor 00 02 USB Version 2.0 09 Hub class 01 Sub-class - (single TTs) 00 Device Protocol 40h Maximum packet size 8F 05 Vender ID - Alcor 54 62 Product ID - 6254 01 00 Device release number 00 Index of Manufacturer string descriptor 00 Index of Product string descriptor 00 Index of serial number string descriptor - no serial number 01 Number of configuration
18A
9
09,02,19,00,01 ,01,00,E0,32 09,04,00,00,01 ,09,00,00,00 07,05,81,03,01 ,00,0C 09,04,00,01,01 ,09,00,02,00 07,05,81,03,01 ,00,0C 0A,06,00,02,09 ,00,00,40,01,0 0 09,07,19,00,01 ,01,00,E0,32
Hub HS Config Desc. 1 interface, self powered, remote wakeup, 100 mA Total bytes returned : 0x19 Hub HS interface descriptor, interface 0. Class code 0x9, single TT Hub HS endpoint descriptor Hub HS interface descriptor, interface 0. Class code 0x9, formultipleTT Hub HS endpoint descriptor Hub HS Device Qualifier descriptor - USB 2.00,
193 19C 1A3 1AC 1B3
9 7 9 7 A
1BD
9
Hub HS Other speed Config Desc. 1 interface, self powered, remote wakeup, 100 mA Total bytes returned : 0x19 Hub HS Other speed interface descriptor, interface 0. Class code 0x9 Hub HS Other speed endpoint descriptor Hub class descriptor. 09 Descriptor length 29 Hub Descriptor 04 Number of downstream port -4 external ports A9 00 Individual Over-current sensing, individual power switch, 8 FS bit TT think time, port indicators supported 32 Power good wait time 32hx2 mS (=100ms) 64 Maximum current required (=100mA) 00 No ports are not removable FF Port power control mask Hub class descriptor. 09 Descriptor length 29 Hub Descriptor 04 Number of downstream port - 4 external ports A0 00 Global Over-current sensing, gang power switch, 8 FS bit TT think time, port indicators supported
1C6 1CF 1D6
9 7 9
09,04,00,00,01 ,09,00,00,00 07,05,81,03,01 ,00,FF 09,29,04,89,00 ,32,64,00,FF
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1DF 9 09,29,04,80,00 ,32,64,00,FF
10
AU6256 USB2.0 HUB Controller V1.00
OFFSET (BYTE, HEX)
LENGTH (BYTE, HEX)
VALUES (HEX)
DESCRIPTION 32 Power good wait time 32hx2 mS (=100ms) 64 Maximum current required (=100mA) 00 No ports are not removable FF Port power control mask Spare bytes
1E8
18
00,00,00,00,00 ,00,00,00, 00,00,00,00,00 ,00,00,00, 00,00,00,00,00 ,00,00,00,
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5. Electrical Characteristics
5.1 Absolute Maximum Ratings
Table 5.1 Absolute Maximum Ratings SYMBOL
V5IN VDDH VIN TSTG
PARAMETER
Power Supply Power Supply Input Signal Voltage Storage Temperature
RATING
-0.3 to 5.25 -0.3 to 3.6 -0.3 to VDDH +0.3 -40 to 150
UNITS
V V V
O
C
5.2 Recommended Operating Conditions
Table 5.2 Recommended Operating Conditions SYMBOL
V5IN VDDH VDD VIN TOPR
PARAMETER
Power Supply Power Supply Digital Supply Input Signal Voltage Operating Temperature
MIN
4.75 3.0 1.62 -0.3 0
TYP
5.0 3.3 1.8
MAX
5.25 3.6 1.98 VDDH +0.3 85
UNITS
V V V V
O
C
5.3 General DC Characteristics
Table 5.3 General DC Characteristics SYMBOL
IIN IOZ CIN COUT CBID www..com
PARAMETER
Input current Tri-state leakage current Input capacitance Output capacitance Bi-directional buffer capacitance
CONDITIONS
No pull-up or pull-down
MIN
-10 -10
TYP
1 1 2.8 2.8 2.8
MAX
10 10
UNITS
A A F F F
Pad Limit Pad Limit Pad Limit
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AU6256 USB2.0 HUB Controller V1.00
5.4 DC Electrical Characteristics of 3.3V I/O Cells
Table 5.4 DC Electrical Characteristics of 3.3V I/O Cells Limits SYMBOL PARAMETER CONDITIONS UNIT MIN TYP MAX
VDDH Vil Vih Vol Voh Rpu Rpd Iin Ioz Power supply Input low voltage LVTTL Input high voltage Output low voltage Output high voltage Input pull-up resistance Iol=2~16mA Ioh=2~16mA PU=high, PD=low 2.4 55 40 -10 -10 75 75 1 1 110 150 10 10 2.0 0.4 V V V K K A A 3.3V I/O 3.0 3.3 3.6 0.8 V V
Input pull-down resistance PU=low, PD=high Input leakage current Tri-state output leakage current Vin= VDDH or 0
5.5 Crystal Oscillator Circuit Setup for Characterization
The following setup was used to measure the open loop voltage gain for crystal oscillator circuits. The feedback resistor serves to bias the circuit at its quiescent operating point and the AC coupling capacitor, Cs, is much larger than C1 and C2.
Figure 5.1 Crystal Oscillator Circuit Setup for Characterization
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5.6 Bus Timing/Electrical Characteristics
Table 5.5 DC Electrical Characteristics
Input Levels for Low-/Full -speed:
SYMBOL
VIH VIHZ VIL VDI VCM
PARAMETER
High (Driven) High (floating) Low Differential Input Sensitivity Differential Common Mode Range
LIMITS MIN MAX
2.0 2.7 0.2 0.8 3.6 0.8 2.5
UNIT
V V V V V
Input Levels for High -speed:
SYMBOL
VHHSSQ VHSDSC
PARAMETER
High-speed squelch detection threshold (differential signal amplitude) High speed disconnect detection threshold (differential signal amplitude)
LIMITS MIN MAX
100 525 150 625
UNIT
mV mV
Output Levels for Low-/Full-speed:
SYMBOL
VOL VOH VOSE1 VCRS
PARAMETER
Low High (driven) SE1 Output Signal Crossover Voltage
LIMITS MIN MAX
0.0 2.8 0.8 1.3 0.3 3.6 2.0
UNIT
V V V V
Output Levels for High -speed:
SYMBOL
VHSOI VHSOH VHSOL www..com VCHIRPJ VCHIRPK
PARAMETER
High-speed idle level High-speed data signaling high High-speed data signaling low Chirp J level (differential voltage) Chirp K level (differential voltage)
LIMITS MIN MAX
-10 360 -10 700 -900 10 440 10 1100 -500
UNIT
mV mV mV mV mV
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AU6256 USB2.0 HUB Controller V1.00
Terminations:
SYMBOL
RPU RPD ZINP VTERM
PARAMETER
Bus Pull-up Resistor on Upstream Facing Port Bus Pull-down Resistor on Upstream Facing Port Input impedance exclusive of pull-up/pull-down (for low-/full-speed) Termination voltage for upstream facing port pull-up (RPU)
LIMITS MIN MAX
1.425 14.25 300 3.0 3.6 1.575 15.75
UNIT
k k k V
Terminations in High-speed:
SYMBOL
VHSTERM
PARAMETER
Termination voltage in high-speed
LIMITS MIN MAX
-10 10
UNIT
mV
Table 5.6 High-speed Source Electrical Characteristics
Driver Characteristics:
SYMBOL
THSR THSF ZHSDRV Clock Timings:
PARAMETER
Rise Time (10%-90%) Fall Time (10%-90%) Driver Output Resistance (which also serves as high-speed termination)
LIMITS MIN MAX
500 500 40.5 49.5
UNIT
ps ps
SYMBOL
THSDRAT THSFRAM THSRFI
PARAMETER
High-speed Data Rate Micorframe Interval Consecutive Difference Microframe Interval
LIMITS MIN MAX
479.76 124.9375
UNIT
480.24 Mb/s s 125.0625 4 high-speed bit times
Table 5.7 Full-speed Source Electrical Characteristics
Driver Characteristics:
SYMBOL
TFR TFF
PARAMETER
Rise Time Fall Time Differential Rise and Fall Time Matching Driver Output Resistance for driver which is not high-speed capable
LIMITS MIN MAX
4 4 90 28 20 20 111.11 44
UNIT
ns ns %
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TFRFM ZZRV
AU6256 USB2.0 HUB Controller V1.00
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Clock Timings:
SYMBOL
TFDRATHS TFDRATE TFRAME TRFI
PARAMETER
Full-speed Data Rate for hubs and devices which are high-speed capable Full-speed Data Rate for devices which are not high-speed capable Frame interval Consecutive Frame Interval Jitter
LIMITS MIN MAX
11.994 11.970 0.9995 12.006 12.030 1.0005 42
UNIT
Mb/s Mb/s Ms ns
Full-speed Data Timings:
SYMBOL
PARAMETER
Source Jitter Total(including frequency tolerance): To Next Transition For Paired Transitions Source Jitter for Differential Transition to SE0 Transition Receiver Jitter: To Next Transition For Paired Transitions Source SE0 interval of EOP Receiver SE0 interval of EOP Width of SE0 interval during differential transition
LIMITS MIN MAX
-3.5 -4 -2 -18.5 -9 160 82 -3.5 -4 5 -18.5 -9 175 14
UNIT
TDJ1 TDJ2 TFDEOP TJR1 TJR2 TFEPPT TFEOPR TFST
ns ns ns ns ns ns ns ns
Table 5.8 Low-speed Source Electrical Characteristics
Driver Characteristics:
SYMBOL
TLR TLF TLRFM CLINUA Clock Timings:
PARAMETER
Rise Time Fall Time Differential Rise and Fall Time Matching Upstream Facing Port (w/cable, low-speed only)
LIMITS MIN MAX
75 75 80 200 300 300 125 450
UNIT
ns ns % pF
SYMBOL
www..com
PARAMETER
LIMITS MIN MAX
1.50075 1.5225
UNIT
Mb/s Mb/s
TLDRATHS TLDRATE
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Low-speed Data Rate for hubs and devices which are high-speed 1.49925 capable Low-speed Data Rate for devices 1.4775 which are not high-speed capable
AU6256 USB2.0 HUB Controller V1.00
Low-speed Data Timings:
SYMBOL
PARAMETER
Upstream facing port source Jitter Total(including frequency tolerance): To Next Transition For Paired Transitions Upstream facing port source Jitter for Differential Transition to SE0 Transition Upstream facing port differential Receiver Jitter: To Next Transition For Paired Transitions Upstream facing port differential Receiver Jitter: To Next Transition For Paired Transitions Downstream facing port Differential Receiver Jitter: To Next Transition For Paired Transitions Source SE0 interval of EOP Receiver SE0 interval of EOP Width of SE0 interval during differential transition
LIMITS MIN MAX
-95 -150 -40 95 150 100
UNIT
TUDJ1 TUDJ2 TLDEOP
ns ns ns
TDJR1 TDJR2
-75 -45
75 45
ns ns
TDDJ1 TDDJ2
-25 -14
25 14
ns ns
TUJR1 TUJR2 TLEOPT TLEOPR TLST
-152 -200 1.25 670
152 200 1.50 210
ns ns s ns ns
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AU6256 USB2.0 HUB Controller V1.00
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6. Mechanical Information
Figure 6.1 48LQFP Mechanical Information Diagram
E E1
GAUGE PLANE D D1 SEATING PLANE L L1
0.25
A1
C1 b e
A2 A
SYMBOLS A A1 A2 c1 D D1 E E1 e b L L1
MIN. MAX. -1.6 0.05 0.15 1.35 1.45 0.09 0.16 9.00 BSC 7.00 BSC 9.00 BSC 7.00 BSC 0.5 BSC 0.17 0.27 0.45 0.75 1 REF
JEDEC OUTLINE: MS-026 BBC DIMENSIONS D1 AND E1 DO NOT INCLUDE MOLD PROTRUSION. ALLOWABLE PROTRUSION IS 0.25mm PER SIDE. D1 AND E1 ARE MAXIMUM PLASTIC BODY SIZE DIMENSIONS IMCLUDING MOLD MISMATCH. 3. DIMENSION b DOES NOT INCLUDE DAMBAR PROTRUSION. ALLOWABLE DAMBAR PROTRUSION SHALL NOT CAUSE THE LEAD WIDTH TO EXCEED THE MAXIMUM b DIMENSION BY MORE THAN 0.08mm
1. 2.
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AU6256 USB2.0 HUB Controller V1.00
7. Abbreviations
In this chapter some of the terms and abbreviations used throughout the technical reference manual are listed as follows. SIE UTMI Serial Interface Engine USB Transceiver Macrocell Interface
About Alcor Micro, Corp.
Alcor Micro, Corp. designs, develops and markets highly integrated and advanced peripheral semiconductor, and software driver solutions for the personal computer and consumer electronics markets worldwide. We specialize in USB solutions and focus on emerging technology such as USB and IEEE 1394. The company offers a range of semiconductors including controllers for USB hub, integrated keyboard/USB hub and USB Flash memory card reader...etc. Alcor Micro, Corp. is based in Taipei, Taiwan, with sales offices in Taipei, Japan, Korea and California. Alcor Micro is distinguished by its ability to provide innovative solutions for spec-driven products. Innovations like single chip solutions for traditional multiple chip products and on-board voltage regulators enable the company to provide cost-efficiency solutions for the computer peripheral device OEM customers worldwide.
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AU6256 USB2.0 HUB Controller V1.00
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