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24
March 17, 1995
RGB524
IBM
9.0
Internal Register - Summary
Table 9 is a summary of the internal registers. Detailed
descriptions are given in Section
10.0.For correct operation, and to preserve upward compati-
bility, the registers listed as “Reserved” must not be
written to. Within a register, individual bits listed as
“Reserved” must be set to ‘0’s.
Table 9. Internal Register Summary
RS[2:0]
Index
R/W
Reset
Value
Register Name
000
-
U
Palette Address (Write
Mode)
001
-
U
Palette Data
010
-
U
Pixel Mask
011
-
U
Palette Address (Read
Mode)
100
-
U
Index Low
101
-
U
Index High
110
-
U
Index Data (Indexed
Registers)
111
-
U
Index Control
110
0x0000
RO
Rev
Revision Level
110
0x0001
RO
0x02
ID
110
0x0002
0x00
Miscellaneous Clock
Control
110
0x0003
0x00
Sync Control
110
0x0004
0x00
Horizontal Sync
Position
110
0x0005
0x00
Power Management
110
0x0006
0x00
DAC Operation
110
0x0007
0x00
Palette Control
110
0x0008
0x01
System Clock Control
110
0x0009
-
(Reserved)
110
0x000a
U
Pixel Format
110
0x000b
U
8 BPP Control
110
0x000c
U
16 BPP Control
110
0x000d
U
24 BPP Packed
Control
110
0x000e
U
32 BPP Control
110
0x000f
-
(Reserved)
110
0x0010
0x00
Pixel PLL Control 1
110
0x0011
0x00
Pixel PLL Control 2
110
0x0012 -
0x0013
--
(Reserved)
110
0x0014
U
Fixed Pixel PLL
Reference Divider
110
0x0015
0x08
System PLL Reference
Divider
110
0x0016
0x41
System PLL VCO
Divider
110
0x0017 -
0x001f
--
(Reserved)
110
0x0020
0x00
F0 (M0)
110
0x0021
0x00
F1 (N0)
110
0x0022
0x00
F2 (M1)
110
0x0023
0x00
F3 (N1)
110
0x0024
0x00
F4 (M2)
110
0x0025
0x00
F5 (N2)
110
0x0026
0x00
F6 (M3)
110
0x0027
0x00
F7 (N3)
110
0x0028
0x00
F8 (M4)
110
0x0029
0x00
F9 (N4)
110
0x002a
0x00
F10 (M5)
110
0x002b
0x00
F11 (N5)
110
0x002c
0x00
F12 (M6)
110
0x002d
0x00
F13 (N6)
110
0x002e
0x00
F14 (M7)
110
0x002f
0x00
F15 (N7)
110
0x0030
0x00
Cursor Control
110
0x0031
U
Cursor X Low
110
0x0032
U
Cursor X High
110
0x0033
U
Cursor Y Low
110
0x0034
U
Cursor Y High
110
0x0035
U
Cursor Hot Spot X
110
0x0036
U
Cursor Hot Spot Y
110
0x0037 -
0x003f
--
(Reserved)
110
0x0040
U
Cursor Color 1 Red
110
0x0041
U
Cursor Color 1 Green
110
0x0042
U
Cursor Color 1 Blue
110
0x0043
U
Cursor Color 2 Red
110
0x0044
U
Cursor Color 2 Green
110
0x0045
U
Cursor Color 2 Blue
110
0x0046
U
Cursor Color 3 Red
110
0x0047
U
Cursor Color 3 Green
110
0x0048
U
Cursor Color 3 Blue
110
0x0049 -
0x005f
--
(Reserved)
110
0x0060
U
Border Color Red
Table 9. Internal Register Summary (Continued)
RS[2:0]
Index
R/W
Reset
Value
Register Name