Motorola DSP56367 User Manual page 291

23
RECEIVE HIGH BYTE
7
23
RECEIVE HIGH BYTE
SDI
7
MSB
8-BIT DATA
MSB
12-BIT DATA
MSB
MSB
MSB
(a) Receive Registers
23
TRANSMIT HIGH BYTE
7
23
TRANSMIT HIGH BYTE
7
MSB
8-BIT DATA
MSB
12-BIT DATA
MSB
MSB
MSB
(b) Transmit Registers
Figure 10-14 ESAI Data Path Programming Model ([R/T]SHFD=1)
MOTOROLA
16 15
RECEIVE MIDDLE BYTE
0 7
16 15
RECEIVE MIDDLE BYTE
0 7
LSB
0 0
LSB
LSB
16-BIT DATA
20-BIT DATA
24-BIT DATA
16 15
TRANSMIT MIDDLE BYTE
0 7
16 15
TRANSMIT MIDDLE BYTE
0 7
12 BIT
8 BIT
LSB
0 0
LSB
16-BIT DATA
20-BIT DATA
24-BIT DATA
DSP56367
Enhanced Serial Audio Interface (ESAI)
ESAI Programming Model
8 7
RECEIVE LOW BYTE
0 7
8 7
RECEIVE LOW BYTE
0 7
0 0
LSB
LSB
NOTES:
1. Data is received LSB first if RSHFD=1.
2. 24-bit fractional format (ALC=0).
3. 32-bit mode is not shown.
8 7
TRANSMIT LOW BYTE
0 7
8 7
TRANSMIT LOW BYTE
0 7
20 BIT
16 BIT
0 0
LSB
LSB
LSB
NOTES:
1. Data is sent LSB first if TSHFD=1.
2. 24-bit fractional format (ALC=0).
3. 32-bit mode is not shown.
4. Data word is left aligned (TWA=0,PADC=1).
0
ESAI RECEIVE DATA REGISTER
(READ ONLY)
0
0
ESAI RECEIVE
SHIFT REGISTER
0
LEAST SIGNIFICANT
ZERO FILL
0
0
ESAI TRANSMIT DATA
REGISTER
0
(WRITE ONLY)
ESAI TRANSMIT
SHIFT REGISTER
0
24 BIT
SDO
TSWS4-
TSWS0
10-43