bt829bkrf ETC-unknow, bt829bkrf Datasheet - Page 115

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

Bt829B
VideoStream II Decoders
0x3F—Programmable I/O Register (P_IO)
This control register may be written to or read by the MPU at any time. Upon reset, the value of the register bits
is initialized to 0x00. OUT_0 is the LSB. While in 8-bit output mode (SPI-8), the VD[7:0] pins are completely
asynchronous. IN[3:0] represent the digital levels input on VD[7:4], while the values programmed into
OUT[3:0] represent the output on VD[3:0]
IN[3:0]
OUT[3:0]
IN_3
7
0
These input bits can be used to monitor external signals from VD[7:4]. The programmable I/O
register is only accessible in the 8-Bit 4:2:2 YCrCb Output Mode (LEN = 0). When not in 8-
Bit Output Mode, the values returned by the IN[3:0] bits are not valid.
These output bits can be programmed to output miscellaneous additional signals from the
video decoder on VD[3:0]. The Programmable I/O register is only accessible in the 8-bit 4:2:2
YCrCb Output Mode. When not in the 8-Bit output mode, the OUT[3:0] bits are set to
logical 1.
IN_2
6
0
IN_1
5
0
IN_0
4
0
D829BDSA
OUT_3
3
0
OUT_2
0x3F—Programmable I/O Register (P_IO)
2
0
4.0 Control Register Definitions
OUT_1
1
0
OUT_0
0
0
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