Interface To The Motherboard - Siemens SIMATIC Box PC 620 Manual

8.8.2

Interface to the Motherboard

The connection to the motherboard is established by a gold-colored EISA indirect
connector. All the required bus signals (ISA and PCI) are present on this
connector. The following table shows the pin assignments.
ISA Bus Signals
Signal Signal
A name B name
1 iochk# 1 gnd
2 sd7 2 rstdrv
3 sd6 3 +5V
4 sd5 4 irq9
5 sd4 5 -5V
6 sd3 6 drq2
7 sd2 7 -12V
8 sd1 8 0ws#
9 sd0 9 +12V
10 iochrdy 10 gnd
11 aen 11 smemw#
12 sa19 12 smemr#
13 sa18 13 iow#
14 sa17 14 ior#
15 sa16 15 dack3#
16 sa15 16 drq3
17 sa14 17 dack1#
18 sa13 18 drq1
19 sa12 19 refresh#
20 sa11 20 sysclk
21 sa10 21 irq7
22 sa9 22 irq6
23 sa8 23 irq5
24 sa7 24 irq4
25 sa6 25 irq3
26 sa5 26 dack2#
27 sa4 27 t/c
28 sa3 28 bale
29 sa2 29 +5V
30 sa1 30 osc
31 sa0 31 gnd
SIMATIC Box PC 620 Manual
C79000-G7076-C639-04
Signal Signal
C name D name
1 sbhe# 1 memcs
16#
2 la23 2 iocs16#
3 la22 3 irq10
4 la21 4 irq11
5 la20 5 irq12
6 la19 6 irq15
7 la18 7 irq14
8 la17 8 dack0#
9 memr# 9 drq0
1 memw 10 dack5#
0 #
1 sd8 11 drq5
1
1 sd9 12 dack6#
2
1 sd10 13 drq6
3
1 sd11 14 dack7#
4
1 sd12 15 drq7
5
1 sd13 16 +5V
6
1 sd14 17 ma-
7 ster#
1 sd15 18 gnd
8
PCI Bus Signals
Signal Signal
E name F name
1 gnd 1 clk
(slot3)
2 gnd 2 gnd
3 inta# 3 intc#
4 intb# 4 intd#
5 +5V 5 +5V
7 +5V 7 +5V
8 rst# 8 clk (slot
1)
9 gnt# 9 gnd
(slot 1)
10 req# 10 gnt#
(slot1) (slot 2)
11 gnd 11 gnd
12 clk (slot 12 req#
2) (slot2)
13 gnd 13 ad31
14 ad30 14 ad29
15 Req_N3 15 GNT_N
3
17 +3,3V 17 +3,3V
18 ad28 18 ad27
19 ad26 19 ad25
20 ad24 20 c/be3#
21 ad22 21 ad23
22 ad20 22 ad21
23 ad18 23 ad19
24 +3,3V 24 +3,3V
26 +3,3V 26 +3,3V
27 ad16 27 ad17
28 frame# 28 irdy#
29 c/be2# 29 devsel#
30 trdy# 30 lock#
31 stop# 31 perr#
Hardware Information
Signal Signal
G name H name
1 sdone 1 serr#
2 sbo# 2 ad15
3 c/be1# 3 ad14
4 par 4 ad12
5 gnd 5 gnd
7 gnd 7 gnd
8 ad13 8 ad10
9 ad11 9 ad8
1 ad9 10 ad7
0
1 c/be0# 11 ad5
1
1 ad6 12 ad3
2
1 ad4 13 ad1
3
1 ad2 14 ad0
4
1 +5V 16 +5V
6
1 +5V 17 +5V
7
1 gnd 18 gnd
8
1 gnd 19 gnd
9
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