bt829bkrf ETC-unknow, bt829bkrf Datasheet - Page 113

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

Bt829B
VideoStream II Decoders
0x1C—Extended Data Service/Closed Caption Status Register (CC_STATUS)
This register may be written or read by the MPU at any time. Upon reset, the value of register bits 7, 1, and 0 are
indeterminate because their status depends on the incoming CC/EDS data. Having register bits 6, 5, and 4 at
their reset value causes the CC/EDS circuitry to be powered down. LO_HI is the LSB. An asterisk indicates the
default option.
PARITY_ERR
CCVALID_EN
EDS
CC
OR
DA
CC_EDS
LO_HI
PARITY_ERR
7
X
CCVALID_EN
This bit corresponds to the current word in CC_DATA.
NOTE:
This bit serves as a mask for the CCVALID interrupts pin.
This bit determines whether EDS data is written into the CC_DATA FIFO.
This bit determines whether CC data is written into the CC_DATA FIFO.
This bit indicates the CC_DATA FIFO is full and that EDS or CC data has been lost. This bit is
read only. On reset or read of CC_DATA, this bit is set to zero.
CC/EDS data available. This bit indicates whether valid data exists in the CC_DATA FIFO.
This bit is read only. On reset, this bit is set to zero.
This bit indicates whether a CC byte or an EDS byte is in the CC_DATA register. After the
CC_DATA register is read, this bit is automatically updated. This bit is read only. On reset, this
bit is not valid.
CC/EDS data are output in 16-bit words. This bit indicates whether the low or high byte is
located in the CC_DATA register. This bit is read only. On reset, this bit is not valid.
6
1
Closed caption data is transmitted using odd parity.
EDS
5
0
0
1
0
1
0*
1
0*
1
0
1
0
1
0
1
0
1
= No error
= Odd parity error
= Disabled CCVALID interrupts pin
= Enabled CCVALID interrupts pin
=
=
=
=
=
=
=
=
=
=
=
=
EDS data is not written into the CC_DATA FIFO
EDS data is written into the CC_DATA FIFO
CC data is not written into the CC_DATA FIFO
CC data is written into the CC_DATA FIFO
An overflow has not occurred since this bit was last reset
An overflow has occurred
FIFO is empty
One or more bytes available
Closed caption byte in CC_DATA
Extended data service byte in CC_DATA
Low byte is in the CC_DATA register
High byte is in the CC_DATA register
CC
4
0
D829BDSA
0x1C—Extended Data Service/Closed Caption Status Register
OR
3
0
DA
2
0
4.0 Control Register Definitions
CC_EDS
1
X
LO_HI
0
X
103