AV_BUF_DITHER_CONFIG (DISPLAY_PORT) Register Description
| Register Name | AV_BUF_DITHER_CONFIG |
|---|---|
| Offset Address | 0x000000B07C |
| Absolute Address | 0x00FD4AB07C (DISPLAY_PORT) |
| Width | 32 |
| Type | mixedMixed types. See bit-field details. |
| Reset Value | 0x00000000 |
| Description | This register is used for configuring dither functions |
AV_BUF_DITHER_CONFIG (DISPLAY_PORT) Register Bit-Field Summary
| Field Name | Bits | Type | Reset Value | Description |
|---|---|---|---|---|
| Reserved | 31:11 | razRead as zero | 0x0 | |
| TAP_MSB | 10 | rwNormal read/write | 0x0 | When this bit = 1; MSB bits of the LFSR are tapped as random value. When this bit = 0, LSB bits of the LFSR are used to get dither word |
| DW_SEL | 9 | rwNormal read/write | 0x0 | All the three colors are added with same random value. Set 1 to enable each color different random value for dithering |
| LD | 8 | rwNormal read/write | 0x0 | Load LFSR: set 1 to load LFSR |
| TRUNC_PT | 7:5 | rwNormal read/write | 0x0 | Truncation Point. This must be clubbed with BPC and DW size. 000b: Truncate point at 0 001b: Truncate point at 1 010b: Truncate point at 2 011b: Truncate point at 3 100b: Truncate point at 4 Allowed combinations of dither word size, Truncation point, BPC are: DW Size, TP, BPC 2, 0, 6/8/10 2, 1, 6/8/10 3, 0, 6/8 3, 1, 6/8/10 3, 2, 6/8/10 4, 0, 6/8 4, 1, 6/8 4, 2, 6/8/10 4, 3, 6/8/10 5, 0, 6 5, 1, 6/8 5, 2, 6/8 5, 3, 6/8/10 5, 4, 6/8/10 |
| MODE | 4:3 | rwNormal read/write | 0x0 | dithering mode 00b: truncate 01b: Round 10b: Dither Note: Value of 11b is not encoded to any mode. However, when this value is programmed, output is truncated version of input. |
| SIZE | 2:0 | rwNormal read/write | 0x0 | Dithering word size. 010b: Dither word size = 2 011b: Dither word size = 3 100b: Dither word size = 4 101b: Dither word size = 5 |