The PC/104 connector consists of two rows of pins labeled A and B, the numbering of of which is shown below. The signals for the PC-104 are generated by the MAX240 PLD located on the baseboard. It converts the MUXBUS signals from the dual 100-pin System-on-Module TS-STOCKET interface bus.
Any of the IO on this board labelled DIO_ can be controlled through manipulation of the TS-8100 registers.
You can also drive these DIO to manually manipulate the PC104 address to make peripherals usable that require a higher range of address than provided by the default address space of the MUXBUS.
Pin
|
Name
|
Pin
|
Name
|
A1
|
BUS_BHE#
|
B1
|
Ground
|
A2
|
AD_07
|
B2
|
ISA_RESET
|
A3
|
AD_06
|
B3
|
5V
|
A4
|
AD_05
|
B4
|
AD_08
|
A5
|
AD_04
|
B5
|
CPU_3.3V
|
A6
|
AD_03
|
B6
|
Not connected
|
A7
|
AD_02
|
B7
|
Not connected
|
A8
|
AD_01
|
B8
|
Not connected
|
A9
|
AD_D0
|
B9
|
VIN
|
A10
|
ISA_WAIT#
|
B10
|
Ground
|
A11
|
Ground
|
B11
|
DIO_B11
|
A12
|
Not connected
|
B12
|
DIO_B12
|
A13
|
Not connected
|
B13
|
ISA_LOW#
|
A14
|
Not connected
|
B14
|
ISA_IOR#
|
A15
|
Not connected
|
B15
|
Not connected
|
A16
|
DIO_A16
|
B16
|
Not connected
|
A17
|
DIO_A17
|
B17
|
AD_09
|
A18
|
DIO_A18
|
B18
|
AD_10
|
A19
|
DIO_A19
|
B19
|
Not connected
|
A20
|
DIO_A20
|
B20
|
AD_12
|
A21
|
DIO_A21
|
B21
|
ISA_IRQ7
|
A22
|
ISA_ADD9
|
B22
|
ISA_IRQ6
|
A23
|
ISA_ADD8
|
B23
|
ISA_IRQ5
|
A24
|
ISA_ADD7
|
B24
|
Ground
|
A25
|
ISA_ADD6
|
B25
|
AD_11
|
A26
|
ISA_ADD5
|
B26
|
AD_13
|
A27
|
ISA_ADD4
|
B27
|
AD_14
|
A28
|
ISA_ADD3
|
B28
|
AD_15
|
A29
|
ISA_ADD2
|
B29
|
5V
|
A30
|
ISA_ADD1
|
B30
|
ISA 14.3 MHZ
|
A31
|
ISA_ADD0
|
B31
|
Ground
|
A32
|
Ground
|
B32
|
Ground
|
|
|
WARNING:
|
Most of the pins on the PC104 bus are only 3.3V tolerant. Refer to the schematic for more details.
|