Pc/104-plus bus interface, Pc/104 bus connector (x17) – ADLINK CM3-GF User Manual
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TME-104P-CMx-GF-1V7
Rev 1.7
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3.15 PC/104-Plus Bus Interface
The PC/104-Plus bus is a modification of the standard PCI bus. It allows all of the PC/104 features to be used
together with the high-speed PCI bus.
The main features are:
PC/104-Plus Bus slot, fully compatible with PCI version 2.2 specifications
Integrated PCI arbitration interface (32 bit wide, 3.3V)
Translation of PCI cycles to ISA bus
Translation of ISA master initiated cycle to PCI
Support for burst read/write from PCI master
33 MHz PCI clock
Note:
The 3.3 V pins on the PC/104 Plus bus are supplied by either the on-
board 3.3 V power supply or by the Power Supply Connector, if
provided. Maximum current for the on-board power supply is 1.0A.
If a PC/104 Plus peripheral board is used that needs 3.3V from the bus
as power, and the customer must supply this voltage by itself, on-board
power will be cut off to prevent damage.
PC/104 Bus Connector (X17)
Pin
A
B
C
D
1
GND
+5V Standby
+5V
AD00
2
VI/O
AD02
AD01
+5V
3
AD05
GND
AD04
AD03
4
C/BE0
AD07
GND
AD06
5
GND
AD09
AD08
GND
6
AD11
VI/O
AD10
+3.3V
7
AD14
AD13
GND
AD12
8
+3.3V
C/BE1#
AD15
+3.3V
9
SERR#
GND
ATX_PSON#
PAR
10
GND
PERR#
+3.3V
PME#
11
STOP#
+3.3V
LOCK#
GND
12
+3.3V
TRDY#
GND
DEVSEL#
13
FRAME#
GND
IRDY#
+3.3V
14
GND
AD16
+3.3V
C/BE2#
15
AD18
+3.3V
AD17
GND
16
AD21
AD20
GND
AD19
17
+3.3V
AD23
AD22
+3.3V
18
IDSEL0
GND
IDSEL1
IDSEL2
19
AD24
C/BE3#
VI/O
IDSEL3