Post Codes & Error Codes F-8
F.02 WORD CHECK-POINTS
Additional WORD check-points are output to port 80h while control is inside the different
BUS routines. The LOW BYTE of check-point is the POST code (section F.01)
representing the system BIOS check-point from where the control is passed to different
BUS routines.
The HIGH BYTE of check-point is the indication of which routine is being executed in
different BUSes. The details of HIGH BYTE (‘XY’) are explained below.
The upper nibble ‘X’ indicates the function number being executed:
0
Disable all devices on the BUS concerned.
1
Static devices initialization on the BUS concerned.
2
Output device initialization on the BUS concerned.
3
Input device initialization on the BUS concerned.
4
IPL device initialization on the BUS concerned.
5
General device initialization on the BUS concerned.
6
Error reporting for the BUS concerned.
7
Add-on ROM initialization for all BUSes.
The lower nibble ‘Y’ indicates the BUS on which the different routines are being
executed:
0
Generic DIM (Device Initialization Manager).
1
On-board System devices.
2
ISA devices.
3
EISA devices.
4
ISA PnP devices.
5
PCI devices.
Summary of Contents for VIPer808
Page 21: ...Installing Memory 2 3 DIAGRAM 2 1 Assembly Top...
Page 22: ...Installing Memory 2 5 DIAGRAM 2 2 Assembly Bottom...
Page 26: ...Setting Jumpers 3 3 DIAGRAM 3 1 VIPer808 Jumper Locations with Default Settings...
Page 28: ...Setting Jumpers 3 6 TABLE 3 1a Jumper Settings W1 W4 W13 W14...
Page 29: ...Setting Jumpers 3 7 TABLE 3 1b AMD DX2 DX4 CPU Jumper Settings W1 W15 W15C...
Page 30: ...Setting Jumpers 3 8 TABLE 3 1c AMD 5x86 CPU Jumper Settings W1 W15 W15C...
Page 31: ...Setting Jumpers 3 9 TABLE 3 1d Intel CPU Jumper Settings W1 W15 W15C...
Page 32: ...Setting Jumpers 3 10 TABLE 3 1e SGS CPU Jumper Settings W1 W15 W15C...
Page 33: ...Setting Jumpers 3 11 TABLE 3 1f Jumper Settings W18 W20 W23...
Page 92: ...Memory I O Maps B 1 APPENDIX B MEMORY I O MAPS B 01 MEMORY MAPS DIAGRAM B 1 Memory Map Diagram...
Page 96: ...Mechanical Layout Block Diagram C 3 DIAGRAM C 1 Mechanical Specifications...
