Table of Contents
Advertisement
PC/104 (ISA) Expansion Bus (J7-J8)
VL-EPICs-36 has limited support of the PC/104 bus. Most PC/104 cards will work, but be sure to
check the requirements of your PC/104 card against the list below.
PC/104 I/O S
UPPORT
The ISA I/O ranges listed below are supported. The I/O ranges allocated to COM ports 1-4 are
available to ISA when the on-board COM port function is disabled in CMOS Setup.
019h – 01Eh
022h – 023h
026h – 027h
02Ah – 02Bh
032h – 033h
036h – 037h
Available base I/O addresses for COM ports are: 220h, 228h, 238h, 338h, 3F8h, 2F8h, 3E8h, and
2E8h.
PC/104 M
EMORY
Memory ranges supported:
•
A0000h – B7FFFh
•
D0000h – DFFFFh
IRQ S
UPPORT
The following IRQs are available on the PC/104 bus:
•
IRQ 3, IRQ 4, IRQ5, and IRQ 10
Each of the four IRQs must be enabled in CMOS Setup before they can be used on the ISA bus.
Because ISA IRQ sharing is not supported, make sure that any IRQ channel used for an ISA
device is not used elsewhere. For example, if ISA IRQ 4 is enabled, you must use a different IRQ
for COM1.
DMA S
UPPORT
The current revision of the board does not support PC/104 DMA.
VL-EPICs-36 Reference Manual
03Ah – 03Bh
067h – 070h
03Eh – 03Fh
078h – 07Fh
043h – 04Dh
0A2h – 0A3h
053h – 05Fh
0A6h – 0A7h
063h
0AAh – 0ABh
065h
0AEh – 0AFh
S
UPPORT
Interfaces and Connectors
0B6h – 0B7h
210h – 3BFh
0BAh – 0BBh
3E0h – 4CFh
0BEh – 0BFh
4D2h – 4FFh
0D2h – 0DDh
580h – BFFh
0E0h – 0EFh
D00h
0F1h – 207h
33
Advertisement
Table of Contents
