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Appendix A Expansion Bus
Page: A-2
EB-471LF USER
′
S MANUAL
PC/104 PLUS BUS CONNECTOR PIN ASSIGNMENT
PC/104 Plus Bus connector is divided into four rows. Each row consists of 30
pins.
The pin assignments are as followed:
A B C D
PIN ASSIGNMENT PIN ASSIGNMENT PIN ASSIGNMENT PIN ASSIGNMENT
A1 GND B1 Reserved C1 +5V D1 AD00
A2 V/I/O B2 AD02 C2 AD01 D2 +5V
A3 AD05 B3 GND C3 AD04 D3 AD03
A4 C/BE0# B4 AD07 C4 GND D4 AD06
A5 GND B5 AD09 C5 AD08 D5 GND
A6 AD11 B6 V/I/O C6 AD10 D6 M66EN
A7 AD14 B7 AD13 C7 GND D7 AD12
A8 +3.3V B8 C/BE1# C8 AD15 D8 +3.3V
A9 SERR# B9 GND C9 SB0# D9 PAR
A10 GND B10 PERR# C10 +3.3V D10 SDONE
A11 STOP# B11 +3.3V C11 LOCK# D11 GND
A12 +3.3V B12 TRDY# C12 GND D12 DEVSEL
A13 FRAME# B13 GND C13 IRDY# D13 +3.3V
A14 GND B14 AD16 C14 +3.3V D14 C/BE2#
A15 AD18 B15 +3.3V C15 AD17 D15 GND
A16 AD21 B16 AD20 C16 GND D16 AD19
A17 +3.3V B17 AD23 C17 AD22 D17 +3.3V
A18 IDSEL0 B18 GND C18 IDSEL1 D18 IDSEL2
A19 AD24 B19 C/BE3# C19 V/I/O D19 IDSEL3
A20 GND B20 AD26 C20 AD25 D20 GND
A21 AD29 B21 +5V C21 AD28 D21 AD27
A22 +5V B22 AD30 C22 GND D22 AD31
A23 REQ0# B23 GND C23 REQ1# D23 V/I/O
A24 GND B24 REQ2# C24 +5V D24 GNT0#
A25 GNT1# B25 V/I/O C25 GNT2# D25 GND
A26 +5V B26 CLK0 C26 GND D26 CLK1
A27 CLK2 B27 +5V C27 CLK3 D27 GND
A28 GND B28 INTD# C28 +5V D28 RST#
A29 +12V B29 INTA# C29 INTB# D29 INTC#
A30 -12V B30 Reserved C30 Reserved D30 GND