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32-BIT RISC PROCESSOR
- TOP VIEW 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1
IMST805 (1/4) IL08
GND
GND
21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50
VDD
100 99 98 97 96 95 94 VDD 93 92 91 90 89
VDD VDD
88 87 86 85 84 83 82 GND 81 80 79
GND
78 77 76 75 74 73 72 71
VDD GND 66 67 68 69 70
51
52
53
54
55
56
57
58
59
60
61
62
63
64
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65
IMST805 (2/4)
33
65
86 V DD
V DD
21
V DD
V DD
8 ANALYSE 20 PROC SPEED SELECT 0 9 PROC SPEED SELECT 1 16 PROC SPEED SELECT 2 24 CLOCK IN 12 RESET 17 ERROR IN 13 BOOT FROM ROM 10 DISABLE INT RAM 55 MEM WAIT 52 MEM REQ 51 MEM CONFIG 44 EVENT REQ
V DD
93
ERROR PROC CLOCK NOT MEM RD NOT MEM WRB0 NOT MEM WRB1 NOT MEM WRB2 NOT MEM WRB3 NOT MEM S0 NOT MEM S1 NOT MEM S2 NOT MEM S3 NOT MEM S4 REFRESH PENDING MEM GRANTED
14 30 63 62 61 59 58 64 69 68 67 66 26 53
35 LINK IN 0 37 LINK IN 1 39 LINK IN 2 41 LINK IN 3 28 LINK SPECIAL 29 LINK 0 SPECIAL 31 LINK 123 SPECIAL
42 EVENT ACK 25 EVENT WAITING LINK OUT 0 LINK OUT 1 LINK OUT 2 LINK OUT 3 MEM NOT RF D1 MEM NOT WR D0 MEM AD 31 MEM AD 30 MEM AD 29 MEM AD 28 MEM AD 27 MEM AD 26 MEM AD 25 MEM AD 24 MEM AD 23 MEM AD 22 MEM AD 21 MEM AD 20 MEM AD 19 34 36 38 40 72 71 7 6 5 3 2 1 99 98 97 96 95 94 92
MEM AD 10
MEM AD 11
MEM AD 12
MEM AD 13
MEM AD 14
MEM AD 15
MEM AD 16
MEM AD 17 90 91
43
70
81
73
74
75
76
77
78
79
80
82
83
84
85
87
88
89
MEM AD 18
MEM AD 2
MEM AD 3
MEM AD 4
MEM AD 5
MEM AD 6
MEM AD 7
MEM AD 8
MEM AD 9
GND
GND
GND
IMST805 (3/4) INPUT CLOCK IN PROC SPEED SELECT 0-2 RESET ERROR IN ANALYSE BOOT FROM ROM DISABLE INT RAM MEM WAIT MEM REQ MEM CONFIG EVENT REQ LINK IN0-3 LINK SPECIAL LINK 0-3 SPECIAL OUTPUT ERROR PROC CLOCK OUT NOT MEM RD NOT MEM WRB0-3 NOT MEM S0-4 NOT MEM RF REFRESH PENDING MEM GRANTED EVENT ACK EVENT WAITING LINK OUT 0-3 INPUT/OUTPUT MEM NOT WR D0 MEM NOT RF D1 MEM AD2-31
; CLOCK ; PROCESSOR SPEED SELECTOR ; SYSTEM RESET ; ERROR DAISYCHAIN ; ERROR ANALYSIS ; BOOT FROM EXTERNAL ROM ; DISABLE INTERNAL RAM ; MEMORY CYCLE EXTENDER ; DIRECT MEMORY ACCESS REQUEST ; MEMORY CONFIGURATION DATA ; EVENT REQUEST ; SERIAL DATA ; SELECT NON-STANDARD SPEED ; SELECT SPECIAL SPEED
; ERROR INDICATOR ; PROCESSOR CLOCK ; REED STROBE ; BYTE-ADDRESSING WRITE STROBES ; FIVE GENERAL PURPOSE STROBES ; DYNAMIC MEMORY REFRESH INDICATOR ; DYNAMIC REFRESH IS PENDING ; DIRECT MEMORY ACCESS GRANTED ; EVENT REQUEST ACKNOWLEDGE ; EVENT INPUT REQUESTED BY SOFTWARE ; SERIAL DATA
; MULTIPLEXED DATA BIT 0 ; MULTIPLEXED DATA BIT 1 ; MULTIPLEXED DATA AND ADDRESS BUS
IMST805 (4/4)
FLOATING POINT UNIT
CLOCK IN
24
32
RESET ANALYSE ERROR IN ERROR BOOT FROM ROM PROC SPEED SELECT 0-2
12 8 17 14 13 20,9,16
32 SYSTEM SERVICES
32-BIT PROCESSOR
LINK SERVICES TIMERS 32 10 4 KBYTES OF ON-CHIP RAM LINK INTERFACE
28 29 31
LINK SPECIAL LINK 0 SPECIAL LINK 123 SPECIAL
35 34
LINK IN 0 LINK OUT 0
DISABLE INT RAM
32
32
LINK INTERFACE
37 36
LINK IN 1 LINK OUT 1
PROC CLOCK OUT NOT MEM S0-4 NOT MEM WR B0-3 NOT MEM RD NOT MEM RF REFRESH PENDING MEM WAIT MEM CONFIG MEM REQ MEM GRANTED
30 64,66-69 58,59,61,62 63 57 26 55 51 52 53 EXTERNAL MEMORY INTERFACE 32
32
LINK INTERFACE
39 38
LINK IN 2 LINK OUT 2
32
LINK INTERFACE
41 40
LINK IN 3 LINK OUT 3
EVENT
44 42 25
EVENT REQ EVENT ACK EVENT WAITING
32
71 72 1-3,5-7 73-80,82-85 87-92,94-99
MEM NOT WR D0 MEM NOT RF D1 MEM AD 2-31

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