Vga Registers; General Registers; Sequencer Registers - Mitsubishi Electric LS Pro Hardware Technical Reference

Memory and I/O Usage

VGA registers

The registers which configure and control the VGA are divided into six groups. Each
group of registers is accessed by a number of I/O port addresses. The register groups
and port addresses are shown in the list below.
Registers

General Registers

Sequencer registers

CRT controller registers
Graphics controller registers
Attribute controller registers
DAC registers
The DAC registers are described on page 5/18.
R - read
W - write
M - monochrome
C - colour
All the above registers are functionally identical to the IBM standard VGA equivalents.
The groups of registers are described in the following sections. There are several pairs
of registers an index register and a data register. In these cases the index register is
a pointer to a number of other registers which are accessed via the accompanying data
register.
5/20 LS PRO HARDWARE TECHNICAL REFERENCE
Miscellaneous output register
Input status register 0
Input status register 1
Feature control register
Video subsystem enable register
Sequencer index registers
Sequencer data registers
Index register
CRT controller data register
Index register
Other graphic registers
Index register
Attribute controller data registers
Attributes Address
WMC 03C2h
RMC 03CCh
RMC 03C2h
RM 03BAh
RC 03DAh
WM 03BAh
WC 03DAh
RMC 03CAh
RW 46E8h
RWMC 03C4h
RWMC 03C5h
RWM 03B4h
RWC 03D4h
RWM 03B5h
RWC 03D5h
RWMC 03CEh
RWMC 03CFh
RWMC 03C0h
WMC 03C0h
RMC 03C1h