bt829bkrf ETC-unknow, bt829bkrf Datasheet - Page 104

• Manufacturer Part Number: bt829bkrf
• Description: Video Streamii Decoders
• Manufacturer: ETC-unknow

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4.0 Control Register Definitions
0x12—Output Format Register (OFORM)
0x12—Output Format Register (OFORM)
This control register may be written to or read by the MPU at any time. Upon reset, it is initialized to 0x06.
OES(0) is the LSB. An asterisk indicates the default option.
RANGE
CORE
VBI_FRAME
CODE
LEN
RANGE
7
0
Luma Output Range—This bit determines the range for the luminance output on the Bt829A.
The range must be limited when using the control codes as video timing.
Luma Coring—These bits control the coring value used by the Bt829A. When coring is active
and the total luminance level is below the limit programmed into these bits, the luminance sig-
nal is truncated to zero.
This bit enables the VBI Frame Output Mode. In the VBI Frame Output Mode, every line con-
sists of unfiltered 8*Fsc non-image data. This bit supersedes bit VBIEN in the VTC register.
VBIFMT (also in VTC) works in both VBI frame and line output modes.
Code Control Disable—This bit determines whether control codes are output with the video
data. SPI Mode 2 requires this bit to be programmed with a logical 1. When control codes are
inserted into the data stream, the external control signals are still available.
8- or 16-Bit Format—This bit determines the output data format. In 8-bit mode, the data is out-
put on VD[15:8].
6
0
CORE
5
0
16-bit
0*
1
00* =
01
10
11
0*
1
0*
1
0
1*
8-bit
VD
=
=
=
=
=
=
=
=
=
=
=
VBI_FRAME
VD[15]
Y[7]
Y/Cr/Cb[7]
Normal operation (Luma range 16–253, chroma range 2–253)
Y=16 is black (pedestal)
Cr, Cb=128 is zero color information
Full-range Output (Luma range 0–255, chroma range 2–253)
Y=0 is black (pedestal)
Cr, Cb=128 is zero color information
0x00 no coring
8
16
32
VBI Frame Output Mode disabled
VBI Frame Output Mode enabled
Disable control code insertion
Enable control code insertion
8-bit YCrCb 4:2:2 output stream
16-Bit YCrCb 4:2:2 output stream
4
0
D829BDSA
CODE
Y/Cr/Cb[0]
3
0
VD[8] VD[7]
Y[0]
Cr/Cb[7]
LEN
2
1
VideoStream II Decoders
1
1
Cr/Cb[0]
VD[0]
OES
Bt829B
0
0