AMD Geode LX 800@0.9W - Manual (Page 352)

352 AMD Geode™ LX Processors Data Book
Display Controller Register Descriptions 33234H
6.6.14.2 DC Even Field Video U Start Address Offset (DC_VID_EVEN_U_ST_OFFSET)
Settings written to this register do not take effect until the start of the next even interlaced field.
6.6.14.3 DC Even Field Video V Start Address Offset (DC_VID_EVEN_V_ST_OFFSET)
Settings written to this register do not take effect until the start of the next even interlaced field.
DC Memory Offset 0DCh
Type
R/W
Reset Value xxxxxxxxh
DC_VID_EVEN_U_ST_OFFSET Register Map
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
RSVD OFFSET
DC_VID_EVEN_U_ST_OFFSET Bit Descriptions
Bit Name Description
31:28 RSVD Reserved. Set to 0.
27:0 OFFSET Video U Even Buffer Start Offset. This value represents the starting location for Video
U Buffer for even fields when interlacing is enabled (DC Memory Offset 094h[11] = 1)
and YUV 4:2:0 mode is selected (DC Memory Offset 004h[20] = 1). The lower five bits
should always be programmed as zero so that the start offset is aligned to a 32-byte
boundary.
DC Memory Offset 0E0h
Type
R/W
Reset Value xxxxxxxxh
DC_VID_EVEN_V_ST_OFFSET Register Map
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
RSVD OFFSET
DC_VID_EVEN_V_ST_OFFSET Bit Descriptions
Bit Name Description
31:28 RSVD Reserved. Set to 0.
27:0 OFFSET Video V Even Buffer Start Offset. This value represents the starting location for Video
V Buffer for even fields when interlacing is enabled (DC Memory Offset 094h[11] = 1) and
YUV 4:2:0 is selected (DC Memory Offset 004h[20] = 1). The lower five bits should
always be programmed as zero so that the start offset is aligned to a 32-byte boundary.