Gasboy CFN Series Diagnostic Manual - Manual (Page 350)

Site Controller III
12-16 1116
P1 - CPU PCB Interface (Continued)
Pins B1- B32
Pinout Pin Function Voltage
B1 +5VDC +5VDC
B2 +5VDC +5VDC
B3 LDS – Lower data select  0VDC – ON
B4 UDS – Upper data select  0VDC – ON
B5 WS1 – Wait State 1  0VDC – ON
B6 A2 – Address 2  +5VDC – ON
B7 A4 – Address 4  +5VDC – ON
B8 A6 – Address 6  +5VDC – ON
B9 A8 – Address 8  +5VDC – ON
B10 A10 – Address 10  +5VDC – ON
B11 A12 – Address 12  +5VDC – ON
B12 A14 – Address 14  +5VDC – ON
B13 A16 – Address 16  +5VDC – ON
B14 A18 – Address 18  +5VDC – ON
B15 A20 – Address 20  +5VDC – ON
B16 A22 – Address 22  +5VDC – ON
B17 AS – Address strobe  0VDC – ON
B18 MD14 – Data 14  +5VDC – ON
B19 MD12 – Data 12  +5VDC – ON
B20 MD10 – Data 10  +5VDC – ON
B21 MD8 – Data 8  +5VDC – ON
B22 MD6 – Data 6  +5VDC – ON
B23 MD4 – Data 4  +5VDC – ON
B24 MD2 – Data 2  +5VDC – ON
B25 MD0 – Data 0  +5VDC – ON
B26 BERR – Bus error  0VDC – ON
B27 FC1  +5VDC – ON
B28 IAC  +5VDC – ON
B29 IPL2  +5VDC – ON
B30 CS1 – Chip select 1  0VDC – ON
B31 CS2 – Chip select 2  0VDC – ON
B32 CS3 – Chip select 3  0VDC – ON