CS8427 Cirrus Logic, CS8427 Datasheet - Page 38

• Manufacturer Part Number: CS8427
• Description: 96 kHz Digital Audio Interface Transceiver
• Manufacturer: Cirrus Logic

12.17 User Data Buffer Control (13h)
UD - User data pin (U) direction specifier If this bit is changed during normal operation, then always stop the CS8427
UBM1:0 - Sets the operating mode of the AES3 U bit manager
DETUI - D to E U-data buffer transfer inhibit bit (valid in block mode only).
EFTUI - E to F U-data buffer transfer inhibit bit (valid in block mode only).
12.18 Q-Channel Subcode Bytes 0 to 9 (14h - 1Dh) (Read Only)
The following 10 registers contain the decoded Q-channel subcode data
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first (RUN = 0), write the new value, then start the CS8427 (RUN = 1).
ABS SECOND
ABS MINUTE
ABS FRAME
ADDRESS
SECOND
MINUTE
FRAME
TRACK
INDEX
ZERO
7
0
7
Default = ‘0’
0 - The U pin is an input. The U data is latched in on both rising and falling edges of
1 - The U pin is an output. The received U data is clocked out on both rising and falling edges
Default = ‘00’
00 - Transmit all zeros mode
01 - Block mode
10 - Reserved
11 - Reserved
Default = ‘0’
0 - Allow U-data D to E buffer transfers
1 - Inhibit U-data D to E buffer transfers
Default = ‘0’
0 - Allow U-data E to F buffer transfers
1 - Inhibit U-data E to F buffer transfer
OLRCK. This setting also chooses the U pin as the source for transmitted U data.
of ILRCK. This setting also chooses the U data buffer as the source of transmitted U data.
ABS SECOND
ABS MINUTE
ABS FRAME
ADDRESS
SECOND
MINUTE
FRAME
TRACK
INDEX
ZERO
6
0
6
ABS SECOND
ABS MINUTE
ABS FRAME
ADDRESS
SECOND
MINUTE
TRACK
FRAME
INDEX
ZERO
5
5
0
ABS SECOND
ABS MINUTE
ABS FRAME
ADDRESS
SECOND
MINUTE
FRAME
TRACK
INDEX
ZERO
UD
4
4
ABS SECOND
ABS MINUTE
ABS FRAME
CONTROL
SECOND
MINUTE
FRAME
TRACK
INDEX
UBM1
ZERO
3
3
ABS SECOND
ABS MINUTE
ABS FRAME
CONTROL
SECOND
MINUTE
TRACK
FRAME
INDEX
UBM0
ZERO
2
2
ABS SECOND
ABS MINUTE
ABS FRAME
CONTROL
SECOND
MINUTE
TRACK
FRAME
DETUI
INDEX
ZERO
1
1
CS8427
ABS SECOND
ABS MINUTE
ABS FRAME
DS477PP3
CONTROL
SECOND
MINUTE
FRAME
TRACK
INDEX
EFTUI
ZERO
0
0