Configuration
System configuration.
Registers
Register |
Address |
|---|---|
CONFIG |
BASE_IO + 36 |
FB_ADDR |
BASE_IO + 40 |
VSYNC |
BASE_IO + 44 |
HW_CONFIG |
BASE_IO + 56 |
CONFIG
Read:
Field |
Description |
|---|---|
[15:0] |
Vertical video resolution |
[31:16] |
Horizontal video resolution |
Write:
Field |
Description |
|---|---|
[0] |
0=no action, 1=flush cache |
FB_ADDR
Read:
Field |
Description |
|---|---|
[31:0] |
Frame buffer address |
Write:
Field |
Description |
|---|---|
[31:0] |
Frame buffer address |
VSYNC
Read:
Field |
Description |
|---|---|
[0] |
VSYNC? |
Write: -
HW_CONFIG
Read:
Field |
Description |
|---|---|
[0] |
Is video available? |
[1] |
Is PS/2 keyboard available? |
[2] |
Is PS/2 mouse available? |
[3] |
Is USB host available? |
Write: -