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8.1 Main Board
8.1.1. Main board assembly
System Logic (HT-21)
[PinNo. |
an dea
Po
C3
=
_
—_
tht
CN2 96-Pin Connector for EXT. Bus
25
Pin No.
Signa!
Pin No.
Signal
[4
~—6[ Gupte.
BALE
[2
| RESETDRV
| 29. | :Sv
3.
|45v
|
30. =| oSc
| 4. | IRQS
| 31. | GND
5s:
[Nc
| 32. '| lOcHCK
| 6. |: DRa2
| 33. | $7
| 7
|v
|
34 ~'| SD6
[8
|-ows
|
35
|Sbs
|
| 9.
|[s5v
|
36, _—s«|: Sw
[10 | Gnd
| 37. _—i
sb2
[42
| -SMeMR | 39. =| Spi_— sd
3.
|-low
|
40. | SDo
4.
|-lOR
|
44. __| IOCHRDY
15.
| -DACK3S
| _——42._——s| AEN
| 46. | pros
|
43.__—'| Satg9
[47.
[| -Dacki
|
4a._—sid|s S18
[1a
|prar
|
45
|SA7
|
[49
+ +|-REF
|| S46. S| SAIS
sd
| 20. | syscik
|
47. __| SAIS
| at. | iRa7——id|S
a. | SANA
| 22. ~[ Ross]
S49. | SAB
23.
| IRQs
«|
50. ~— || SA12
24.
| iRa4
|
51.
| Satt
| as. | IRas.—i'd|(C5. | SAMO
26.
| -DACK2—|_—53._—«| Sag
[ a7. |to
|
54
| Sae
| 55. | SA7_
«| —s76,__—*|- -DACK7
| 56. =| SAS
| S77.
|: DROZ
| sz. | sas
|
78,
-MASTER
[sa
[saa
|e.
-SBHE
| 59. | SA3
| 80. | ~LA23
[| 60. {saz
| at.
LA22
Tet. =| Sai
| S|
CLA
D~¢2. | sao.
bao
| 63.__ | -MeMcsie | 84.
LA19
[ 64. | -locsie |
85.
CLANS
(ss. Tiroro | 2.
LAI7
[ 66. | iRai
—s«|_—87._—s| -MEMR
[e67.
[trai
|
sa.__—s| -MEMw
[Tse
[ingis
| 68. SD8
[69
[ima
|
90. | Sd9
| 70. | -DAcKo
| 91. | SDt0
a
SDi1
| 72.~'| -DACKs
| _93._—sé{;:s S®2
[
73. | pras
|
94. | SD13
| 74. | packs
| 95. | §D15
75. | pros]
96. | S16
CS 55 819
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