Integrated Color Space / Raster-To-Block Converter
Mode Register (Continued)
Mode Register
Bits 5-6 DSPY: Determines the PXOUT bus output formats.
Read/Write
Initial Value
Function
Direct address: 0x01
0x91
Initial Value = 0x00.
Determines the basic operating modes and formats
of the ZR36016.
Setting this field of the Mode register selects the
output data format of the PXOUT bus, for each
format of the PXIN bus as selected by the MODE
field of the register, as shown in the table below.
7
6
5
4
3
2
1
0
CMPR
DSPY
MODE
[1]
DSPY
PXIN Bus Image Format
Bit 0-4 MODE: Determines the PXIN input and ZR36050
image formats and color spaces. Initial Value =
0x11.
Bit
Bit
5
4:4:4
(RGB)
4:4:4
(YCbCr)
4:2:2
(YCbCr)
4:1:1
(Philips)
1:0:0
4:4:4:4
6
0
0
1
1
PXOUT
is 4:1:1
(Philips)
PXOUT
is 1:0:0
PXOUT
is 4:4:4
0
1
0
1
PXOUT is 4:4:4 (RGB)
PXOUT is 4:4:4 (YCbCr)
PXOUT is 4:2:2 (YCbCr)
Reserved
ZR36050 Image Format
Input (Compression)
PXBIN Bus
Output (Expansion)
MODE
(HEX)
Image
Format
Color
Space
Image
1. The image format conversions implied by this table
are performed by Format Converter #2 in the block
diagram.
Format
4:4:4
Color Space
00
01
02
4:4:4
RGB
YCbCr
YCbCr
YCbCr
Y Only
RGB
4:2:2
Bit 7 CMPR: Selects compression or expansion
4:1:1 (H2V2)
4:0:0
[1]
03
Initial Value = 1
0 = Expansion Mode.
1 = Compression Mode.
04
05~07
08
4:4:4
Reserved
4:4:4
YCbCr
4:4:4
4:2:2
YCbCr
YCbCr
YCbCr
Y Only
RGB
09
Setup Register 1
0A
4:1:1 (H2V2)
4:0:0
[1]
0B
Read/Write
Initial Value
Indirect address: 0x00
0x01
0C
0D~10
11
4:4:4
Reserved
4:2:2
YCbCr
YCbCr
4:2:2
4:1:1 (H2V2)
4:0:0
YCbCr
YCbCr
Y Only
7
6
5
4
3
2
1
0
12
CKRT VERT HORZ HRFL DSFL SBFL RSTR CNTI
[1]
13
14, 15
16
Reserved
Bit 0 CNTI: Single-Frame/Sequential processing
4:1:1
(PHILIPS)
4:1:1 (H4V1)
4:0:0
YCbCr
Y Only
selection.
[1]
17
Initial value = 1.
18
19
Reserved
4:4:4:4
Reserved
1:0:0
Reserved
0=Single Frame Mode. Processes the image enabled
by VIN and then enters an idle state. For process-
ing still images.
4:4:4:4
1:0:0
–
–
–
–
1A
1B
1=Sequential Mode. Processes sequential images in-
definitely, each VIN. For Motion JPEG.
1C~1F
Bit 1 RSTR: Transparent mode selection, for raster/
1. For Compression Only. If programmed for expansion,
then MODE = 0x16 is assumed.
raster conversion.
2. RGB becomes YeMaCy when selected by the YMCS
bit in Setup Register 2.
Initial Value = 0.
3. MODE = 0x16 and 0x17 are the Philips 4:1:1 format.
Input and output pixel data use the upper 12 bits of
PXIN and PXOUT buses.
0=Selects the raster-to-block or block-to-raster con-
version mode.
1=Selects the transparent raster-to-raster mode.
4. 4:1:1(H4V1) refers to a format in which the Cb and Cr
are decimated by 4 horizontally. 4:1:1(H2V2) refers to
a format in which the Cb and Cr are decimated by 2
horizontally and 2 vertically (sometimes known as
4:2:0 format).
For the Fast Preview lossless compression/expan-
sion functions of the ZR36050. The image formats
supported, as set by the MODE field, are 4:4:4:4,
4:4:4, 4:2:2, or 4:1:1 (H4V1) (with pixel interleave).
As the ZR36050 performs 1-D lossless only, the
setting of RSTR = 1 in 4:1:1(H2V2) format is not
permitted.
5. The image format conversions implied by this table
are performed by Format Converter #1 in the block
diagram.
Note: The strip buffer processing delay is the same
for both modes.
5
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