2004 Mar 01
57
Philips Semiconductors
Product specification
Digital video encoder
SAA7102; SAA7103
7.22
Slave transmitter
Table 108 Slave transmitter (slave address 89H)
Table 109 Subaddress 00H
Table 110 Subaddress 1CH
Table 111 Subaddress 80H
REGISTER
FUNCTION
SUBADDRESS
DATA BYTE
D7
D6
D5
D4
D3
D2
D1
D0
Status byte
00H
VER2
VER1
VER0
CCRDO
CCRDE
0
FSEQ
O_E
Chip ID
1CH
CID7
CID6
CID5
CID4
CID3
CID2
CID1
CID0
FIFO status
80H
0
0
0
0
0
0
OVFL
UDFL
DATA BYTE
LOGIC
LEVEL
DESCRIPTION
VER
−
version identification of the device: it will be changed with all versions of the IC that have
different programming models; current version is 010 binary
CCRDO
1
Closed Caption bytes of the odd field have been encoded
0
the bit is reset after information has been written to the subaddresses 67H and 68H; it is
set immediately after the data has been encoded
CCRDE
1
Closed Caption bytes of the even field have been encoded
0
the bit is reset after information has been written to the subaddresses 69H and 6AH; it is
set immediately after the data has been encoded
FSEQ
1
during first field of a sequence (repetition rate: NTSC = 4 fields, PAL = 8 fields)
0
not first field of a sequence
O_E
1
during even field
0
during odd field
DATA BYTE
DESCRIPTION
CID
chip ID of SAA7102 = 02H; chip ID of SAA7103 = 03H
DATA BYTE
LOGIC
LEVEL
DESCRIPTION
OVFL
0
no FIFO overflow
1
FIFO overflow has occurred; this bit is reset after this subaddress has been read
UDFL
0
no FIFO underflow
1
FIFO underflow has occurred; this bit is reset after this subaddress has been read