Specifications

120 PCA-6178 User's Manual
B.21 1st MB Memory Map
Table B-21: 1st MB memory map
Addr. range (Hex) Device
F0000h - FFFFFh System ROM
C8000h - EFFFFh Unused
C0000h - C7FFFh VGA BIOS
B8000h - BFFFFh CGA/EGA/VGA text
B0000h - B7FFFh Unused
A0000h - AFFFFh EGA/VGA graphics
00000h - 9FFFFh Base memory
B.22 PCI Bus Map
Table B-22: PCI bus map
Function Signals:
Device ID INT# pin GNT# pin
Onboard LAN AD21 INT D GNT E
Onboard SCSI AD20 INT A GNT A
PCI slot 1 AD31 INT B, C, D, A GNT A
PCI slot 2 AD30 INT C, D, A, B GNT B
PCI slot 3 AD29 INT D, A, B, C GNT C
PCI slot 4 AD28 INT A, B, C, D GNT D
Note: In the PCA-6178VS/F, SCSI devices use "GNTA" signals
via PCI slot 1. Therefore, PCI slot1 cannot be used
for plug-in bus master add-on cards such as SCSI
cards or LAN cards.