Hardware Information
7-24
SIMATIC Rack PC 840 Manual
A5E00104826-03
Pin No. Designation X11 Description Input / Output
1 RESET Reset Output
2 GND Ground -
3 D7 Data signal D7 Input / Output
4 D8 Data signal D8 Input / Output
5 D6 Data signal D6 Input / Output
6 D9 Data signal D9 Input / Output
7 D5 Data signal D5 Input / Output
8 D10 Data signal D10 Input / Output
9 D4 Data signal D4 Input / Output
10 D11 Data signal D11 Input / Output
11 D3 Data signal D3 Input / Output
12 D12 Data signal D12 Input / Output
13 D2 Data signal D2 Input / Output
14 D13 Data signal D13 Input / Output
15 D1 Data signal D1 Input / Output
16 D14 Data signal D14 Input / Output
17 D0 Data signal D0 Input / Output
18 D15 Data signal D15 Input / Output
19 GND Ground -
20 – Unassigned -
21 DREQ DMA Request Input
22 GND Ground -
23 IOW_N IO Write Output
24 GND Ground -
25 IOR_N IO Read Output
26 GND Ground -
27 IORDY IO Ready Input
28 CSEL Master/Slave Input
29 DACK_N DMA Acknowledge Output
30 GND Ground -
31 IRQ14/15 Interrupt signal Input
32 IOCS16 Chip Select 16 bits Input
33 AD_1 Adress 1 Output
34 Reserved Reserved -
35 AD_0 Adress 0 Output
36 AD_2 Adress 2 Output
37 CS1_N Chip Select 1 Output
38 CS3_N Chip Select 3 Output
39 HDACT_N Disk drive activity Input
40 GND Ground -
41 P5V +5V power supply Output
42 P5V +5V power supply Output
43 GND Ground -
44 Reserved Reserved -
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