AMD Geode LX 800@0.9W - Manual (Page 461)

AMD Geode™ LX Processors Data Book 461
Video Processor Register Descriptions 33234H
6.8.3.52 Video Output Port Signature (VOP_SIG)
6 SC120X_MODE SC120X Compatible Mode. Creates EAV/SAV codes consistent with the AMD Geode™
SC1200 and SC1201 processor’s VOP.
0: Normal mode.
1: SC1200/SC1201 compatible mode. Set to 1 for BT.601 mode.
5:4 422_MODE 4:4:4 to 4:2:2 Conversion Algorithm. Selects which method is used to convert 4:4:4
data to 4:2:2.
00: 4:2:2 Co-sited.
01: 4:2:2 Interspersed (U,V samples from respective co-samples).
10: 4:2:2 Interspersed (U,V samples from alternating successive samples).
11: Not used.
3 EXT_VIP_
CODES Extended VIP SAV Codes. Additional SAV codes not defined in VIP 2.0 spec, but used
in numerous available other applications (also used in BT.656).
0: Do not use extended codes.
1: Use extended codes.
Note: Selecting BT.656 mode (in bits [1:0]) automatically uses the extended codes.
2 VIP_LEVEL VIP 2.0 Level Selection.
0: VIP 2.0 Level I (8-bit), 601 8-bit.
1: VIP 2.0 Level II (16-bit), 601 16-bit.
1:0 VIP_MODE VIP Mode. Selects between VESA VIP standards.
00: VOP disabled (logic 0’s on data buses).
01: VIP v1.1.
10: VIP v2.0/ BT.601. Selects VIP v2.0 or BT.601 if 601 MODE bit (bit 12) is set.
11: BT.656.
VP Memory Offset 808h
Type
RO
Reset Value 00000000_00000000h
VOP_CONFIG Bit Descriptions (Continued)
Bit Name Description
VOP_SIG Register Map
63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32
RSVD
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
CRC
VOP_SIG Bit Descriptions
Bit Name Description
63:32 RSVD Reserved. Reads back as 0.
31:0 CRC 32-Bit CRC. 32-Bit Signature when in 32-bit CRC mode.