Справочник Пользователя для AMD LX 900@1.5W

AMD Geode™ LX Processors Data Book

461

Video Processor Register Descriptions

33234H

6.8.3.52 Video Output Port Signature (VOP_SIG)

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.

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.

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

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

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.