Samsung S5PC110 Manual page 1758

S5PC110_UM
12.7.1.1 JPEG Mode Register (JPGMOD, R/W, Address = 0xFB60_0000)
JPGMOD
Reserved
PROC_MODE
SUBSAMPLING_MODE
12.7.1.2 JPEG Operation Status Register (JPGOPR, R, Address = 0xFB60_0004)
JPGOPR
Reserved
JPGOPR
12.7.1.3 Quantization Table Number Register (QTBL, R/W, Address = 0xFB60_0008)
QTBL
Reserved
QT_NUM4
QT_NUM3
QT_NUM2
QT_NUM1
Bit
[31:4] Reserved but it should be 0x0
[3] Process mode.
0 = Compression process.
1 = Decompression process.
[2:0] Sub sampling mode
0x0 = chroma 4:4:4 format
0x1 = chroma 4:2:2 format.
0x2 = chroma 4:2:0 format
0x3 = Gray format (Single Component)
Others are reserved.
During decompression, these are read-only.
During compression, only 0x1 or 0x2 are allowed.
Bit
[31:1] Reserved
[0] 0 = JPEG is not operating.
1 = JPEG is operating.
Bit
[31:8] Reserved
[7:6]
Quantization table number for 4
[5:4]
Quantization table number for 3
[3:2]
Quantization table number for 2
[1:0]
Quantization table number for 1
Description
Description
Description
th
component.
nd
component.
nd
component
st
component.
12 11BJPEG
Initial State
0
0
0
Initial State
0
0
Initial State
0
0
0
0
0
12-16