ALXD800EEXJ2VD AMD (ADVANCED MICRO DEVICES), ALXD800EEXJ2VD Datasheet - Page 274

• Manufacturer Part Number: ALXD800EEXJ2VD
• Manufacturer: AMD (ADVANCED MICRO DEVICES)

Specifications of ALXD800EEXJ2VD

• Operating Temperature (min): 0C
• Operating Temperature (max): 85C
• Operating Temperature Classification: Commercial
• Mounting: Surface Mount
• Lead Free Status / RoHS Status: Compliant

6.4.2.25 LUT Index (GP_LUT_INDEX)
GP Memory Offset 70h
Type
Reset Value
This register is used to initialize the LUT_INDEX pointer that is used for subsequent LUT operations. All LUT accesses are
DWORD accesses so only the 9 LSBs of the pointer are used to index into the 2 KB LUT. Addresses 000h-0FFh are used
for 8-bit indexed LUT data. Addresses 000h-00Fh are used for 4-bit indexed LUT data. Addresses 100h-13Fh are used for
storing color patterns. All addresses are used for storing incoming data (unless the PL bit is set in the
GP_CH3_MODE_STR register, GP Memory Offset 64h[20]), but none of the remaining addresses have any significance to
software.
6.4.2.26 LUT Data (GP_LUT_DATA)
GP Memory Offset 74h
Type
Reset Value
This register is used to store data into the LUT for indexed color translations and color patterns. The 32 bits written to this
register are stored in the LUT at the location specified in the GP_LUT_INDEX register (GP Memory Offset 70h). A read of
this register returns the contents of the LUT at the location specified by the GP_LUT_INDEX register. Either a read or write
of this register will cause the GP_LUT_INDEX register to increment, so the LUT can be loaded through successive writes to
the GP_LUT_DATA register.
274
31
31
31:9
31:0
Bit
8:0
Bit
30
30
29
29
28
28
Name
RSVD
LUT_INDEX
Name
LUT_DATA
27
27
R/W
00000000h
R/W
xxxxxxxxh
26
26
33234C
25
25
24
24
23
23
Description
Reserved.
LUT Index. Used to initialize the LUT_INDEX pointer that is used for subsequent LUT
operations. The LUT_INDEX automatically increments on a write to the GP_LUT_DATA
register (GP Memory Offset 74h). When performing a read, bit 31 must be set to cause
the hardware to perform the read and update the GP_LUT_DATA register. If this bit is not
set, then a write is assumed and the read will not be performed.
Description
LUT_DATA. Used to store data into the LUT for indexed color translations and color pat-
terns.
22
22
21
21
RSVD
GP_CH3_HSRC Bit Descriptions
GP_CH3_HSRC Bit Descriptions
20
20
GP_CH3_HSRC Register Map
GP_CH3_HSRC Register Map
19
19
18
18
17
17
LUT_DATA
16
16
15
15
14
14
13
13
12
12
11
11
10
10
Graphics Processor Register Definitions
AMD Geode™ LX Processors Data Book
9
9
8
8
7
7
6
6
LUT_INDEX
5
5
4
4
3
3
2
2
1
1
0
0