Q-Channel Subcode Bytes 0 To 9 (20 - 29) (Read Only); Omck/Rmck Ratio (30) (Read Only); C-Bit Or U-Bit Data Buffer (32 - 55); Cs8427 I.d. And Version Register (127) (Read Only) - Cirrus Logic Crystal CS8427 Series Preliminary Product Information

7.18 Q-Channel Subcode Bytes 0 to 9 (20 - 29) (Read Only)

The following 10 registers contain the decoded Q-channel subcode data
7 6
ADDRESS ADDRESS
TRACK TRACK
INDEX INDEX
MINUTE MINUTE
SECOND SECOND
FRAME FRAME
ZERO ZERO
ABS MINUTE ABS MINUTE
ABS SECOND ABS SECOND
ABS FRAME ABS FRAME

7.19 OMCK/RMCK Ratio (30) (Read Only)

7 6
ORR7 ORR6
The contents of this register represent the ratio of the OMCK signal to the RMCK signal. The value is represented
as an integer and a fractional part.
ORR7:6 - Integer part of the OMCK/RMCK ratio
ORR5:0 - Fractional part of the OMCK/RMCK ratio

7.20 C-bit or U-bit Data Buffer (32 - 55)

Either channel status data buffer E or user data buffer E (provided UBM bits are set to block mode) is accessible via
these register addresses.

7.21 CS8427 I.D. and Version Register (127) (Read Only)

7 6
ID3 ID2
ID3:0 - ID code for the CS8427. Permanently set to 0111
VER3:0 - CS8427 revision level. Revision A is coded as 0001
38
5 4
ADDRESS ADDRESS
TRACK TRACK
INDEX INDEX
MINUTE MINUTE
SECOND SECOND
FRAME FRAME
ZERO ZERO
ABS MINUTE ABS MINUTE
ABS SECOND ABS SECOND
ABS FRAME ABS FRAME
5 4
ORR5 ORR4
5 4
ID1 ID0
3 2
CONTROL CONTROL
TRACK TRACK
INDEX INDEX
MINUTE MINUTE
SECOND SECOND
FRAME FRAME
ZERO ZERO
ABS MINUTE ABS MINUTE
ABS SECOND ABS SECOND
ABS FRAME ABS FRAME
3 2
ORR3 ORR2
3 2
VER3 VER2
CS8427
1 0
CONTROL CONTROL
TRACK TRACK
INDEX INDEX
MINUTE MINUTE
SECOND SECOND
FRAME FRAME
ZERO ZERO
ABS MINUTE ABS MINUTE
ABS SECOND ABS SECOND
ABS FRAME ABS FRAME
1 0
ORR1 ORR0
1 0
VER1 VER0
DS477PP1