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