EAGLE
PRELIMINARY
Ver 1.3
CRT Register
CRT Controller Register Summary
Address
Register Name
Description
FFE0 1400h
CRT Base Address Register (CRTBA)
Specifying start point of Screen
Horizontal Total Scan Value including
Horizontal Active and Blank section.
Start(End) value of Horizontal Sync section
Start(End) value of Horizontal Active section
Vertical Total scan value including Vertical
Active and blank section
FFE0 1404h
CRT Horizontal Total Register (CRTHT)
FFE0 1408h
FFE0 140Ch
CRT Horizontal Sync. Start / End Register (CRTHS)
CRT Horizontal Active Start / End Register (CRTHA)
FFE0 1410h
CRT Vertical Total Register (CRTVT)
FFE0 1414h
FFE0 1418h
FFE0 141Ch
FFE0 1420h
CRT Vertical Sync. Start/End Register (CRTVS)
CRT Vertical Active Start/End Register (CRTVA)
CRT Display Current X / Y Position Register (CRTXY)
CRT Status Register (CRTSTAT)
Start(End) value of Vertical Sync section
Start(End) value of Vertical Active section
Horizontal/Vertical Counter value
Sync status of CRT controller
Controlling Display, Sync, Memory, and FIFO
Mode of CRT
Overlay / DAC control
VESA Display Power Management System
(DPMS) control
FFE0 1424h
FFE0 1428h
FFE0 142Ch
CRT Control Register (CRTCON)
CRT Overlay & DAC Control Register (CRTOEDAC)
CRT VESA Power Management Register (CRTPM)
Table 3-10 CRT Controller Registers Table
3.7.1 CRT Base Address Register(CRTBA)
Address : FFE0 1400h
Bit
31 : 21
20 : 0
R/W
R
R/W
Description
Default Value
Reserved
Base Address
-
00 0000h
These bits indicate the screen start position in memory
3.7.2 CRT Horizontal Total Register(CRTHT)
Address : FFE0 1404h
Bit
31 : 11
10 : 0
R/W
R
R/W
Description
Default Value
Reserved
Horizontal Total
-
000h
This field contains the value of total pixel counts per line.
3.7.3 CRT Horizontal Sync. Start / End Register(CRTHS)
Address : FFE0 1408h
Bit
31 : 27
26 : 16
R/W
R
R/W
Description
Default Value
Reserved
Horizontal Sync Start
-
000h
This field contains the value of horizontal sync period started by the
horizontal counter
15 : 11
10 : 0
R
R/W
Reserved
Horizontal Sync End
-
000h
This field contains the value of horizontal sync period ended by the
horizontal counter
Beijing Peak Microtech Co.Ltd.
CONFIDENTIAL
86
ETC [ ETC ]
