CS4231A Datasheet, PDF (17/76 Pages) List of Unclassifed Manufacturers – PARALLEL INTERFACE MULTIMEDIA AUDIO CODEC

CS4231A
output clocks will stretch, but will not have any
glitches. This allows the serial port to operate
through a sample frequency change.
FSYNC
SCLK
The first format - SPF0, shown in Figure 6, is
called 64-bit enhanced. This format has 64
SCLKs per frame with a one bit period wide
FSYNC that precedes the frame. The first 16 bits
...
SDOUT
SDIN
15 14 13 12 ^... 0 15 14
...
16 Bits
Left Data
16 Bits
Right Data
0 8 zeros INT 7 zeros CEN PEN OVR 13 zeros
32 Bits
15 14 13 12 ^... 0 15 14
...
0
16 Bits
Left Data
16 Bits
Right Data
INT = Interrupt Bit
CEN = Capture Enable
PEN = Playback Enable
OVR = Left Overrange or
Right Overrange
Figure 6. 64-bit enhanced mode (SF1,0 = 00)
FSYNC
SCLK
SDOUT/
SDIN
15 14 13 ^... 0
15 14 13 ^... 0
15
16 Clocks
16 Clocks
Left Data
16 Clocks
16 Clocks
Right Data
Figure 7. 64-bit mode (SF1,0 = 01)
FSYNC
SCLK
...
...
32 No-Clock bit periods
SDOUT/
SDIN
15 14 13
...
0 15 14 13 ^... 0
16 Clocks
Left Data
16 Clocks
Right Data
15 14
...
Left Data
Figure 8. 32-bit mode (SF1,0 = 10)
DS139PP2
17