43.7.67 ISC Rounding, Limiting and Packing Configuration Register

This register can only be written if WPCFGEN is cleared in ISC_WPMR.

Name: ISC_RLP_CFG
Offset: 0x4F4
Reset: 0x00000000
Property: Read/Write

Bit 3130292827262524 
          
Access  
Reset  
Bit 2322212019181716 
          
Access  
Reset  
Bit 15141312111098 
 ALPHA[7:0] 
Access R/WR/WR/WR/WR/WR/WR/WR/W 
Reset 00000000 
Bit 76543210 
 YMODE[1:0]LSHREPMODE[3:0] 
Access R/WR/WR/WR/WR/WR/WR/WR/W 
Reset 00000000 

Bits 15:8 – ALPHA[7:0] Alpha Value for Alpha-enabled RGB Mode

This field is relevant for ARGB444, ARGB555 and ARGB32 pixel formats.

Bits 7:6 – YMODE[1:0] YCbCr Memory Mapping Configuration Mode

YMODE is only available for YCYC and YCYC_Limited modes.
ValueNameDescription
0 RLP_YCBYCR Byte 0 is Cr, Byte 1 is Y(n), Byte 2 is Cb, Byte 3 is Y(n+1)
1 RLP_YCRYCB Byte 0 is Cb, Byte 1 is Y(n), Byte 2 is Cb, Byte 3 is Y(n+1)
2 RLP_CBYCRY Byte 0 is Y(n), Byte 1 is Cr, Byte 2 is Y(n+1), Byte 3 is Cb
3 RLP_CRYCBY Byte 0 is Y (n), Byte 1 is Cb, Byte 2 is Y(n+1), Byte 3 is Cr

Bit 5 – LSH Logical Left Shift for Pixel to 16-bit Container Mapping

ValueDescription
0

Logical left shift is disabled.

1

Pixel value is left-justified in a 16-bit container.

Bit 4 – REP Pixel Expansion with Replication Logic

ValueDescription
0

Replication is disabled.

1

Replication is enabled.

Bits 3:0 – MODE[3:0] Rounding, Limiting and Packing Mode

ValueNameDescription
0 DAT8

8-bit data

1 DAT9

9-bit data

2 DAT10

10-bit data

3 DAT11

11-bit data

4 DAT12

12-bit data

5 DATY8

8-bit luminance only

6 DATY10

10-bit luminance only

7 ARGB444

12-bit RGB+4-bit Alpha (MSB)

8 ARGB555

15-bit RGB+1-bit Alpha (MSB)

9 RGB565

16-bit RGB

10 ARGB32

24-bits RGB mode+8-bit Alpha

11 YYCC

YCbCr mode (full range, [0–255])

12 YYCC_LIMITED

YCbCr mode (limited range)

13 YCYC Y(n+1)CbY(n)Cr 422 interleaved full range per component 8-bit [0–255]
14 YCYC_LIMITED Y(n+1)CbY(n)Cr 422 interleaved limited range per component 8-bit
15 BYPASS 32-bit input is sampled and written to the rlp output port. Select this mode for MIPI RMS mode.