Enhanced Serial Audio Interface (ESAI)
ESAI Programming Model
MOTOROLA
DSP56367
10-43
Figure 10-14 ESAI Data Path Programming Model ([R/T]SHFD=1)
SDI
23
16 15
8 7
0
7
0
7
0 7
0
RECEIVE HIGH BYTE
RECEIVE MIDDLE BYTE
RECEIVE LOW BYTE
ESAI RECEIVE DATA REGISTER
(READ ONLY)
ESAI RECEIVE
SHIFT REGISTER
23
16 15
8 7
0
7
0
7
0 7
0
RECEIVE HIGH BYTE
RECEIVE MIDDLE BYTE
RECEIVE LOW BYTE
24-BIT DATA
0
0
16-BIT DATA
12-BIT DATA
8-BIT DATA
LSB
LSB
LSB
LSB
MSB
MSB
MSB
MSB
LEAST SIGNIFICANT
ZERO FILL
NOTES:
1. Data is received LSB first if RSHFD=1.
2. 24-bit fractional format (ALC=0).
3. 32-bit mode is not shown.
(a) Receive Registers
SDO
23
16 15
8 7
0
7
0
7
0 7
0
TRANSMIT HIGH BYTE
TRANSMIT MIDDLE BYTE
TRANSMIT LOW BYTE
ESAI TRANSMIT DATA
REGISTER
(WRITE ONLY)
ESAI TRANSMIT
SHIFT REGISTER
23
16 15
8 7
0
7
0
7
0 7
0
TRANSMIT HIGH BYTE
TRANSMIT MIDDLE BYTE
TRANSMIT LOW BYTE
24 BIT
TSWS4-
TSWS0
24-BIT DATA
0
0
16-BIT DATA
12-BIT DATA
8-BIT DATA
LSB
LSB
LSB
LSB
MSB
MSB
MSB
MSB
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).
16 BIT
12 BIT
8 BIT
(b) Transmit Registers
0
0
20-BIT DATA
LSB
MSB
20 BIT
LSB
MSB
20-BIT DATA
0
0
Summary of Contents for DSP56367
Page 16: ...xvi MOTOROLA CONTENTS Paragraph Number Title Page Number ...
Page 22: ...xxii MOTOROLA List of Figures Figure Number Title Page Number ...
Page 26: ...xxvi MOTOROLA List of Tables Table Number Title Page Number ...
Page 148: ...4 6 DSP56367 MOTOROLA Design Considerations PLL Performance Issues ...
Page 248: ...9 30 DSP56367 MOTOROLA Serial Host Interface SHI Programming Considerations ...
Page 306: ...10 58 DSP56367 MOTOROLA Enhanced Serial Audio Interface ESAI ESAI Initialization Examples ...
Page 389: ...Bootstrap ROM Contents MOTOROLA DSP56367 A 15 end ...
Page 390: ...A 16 DSP56367 MOTOROLA Bootstrap ROM Contents ...
Page 432: ...C 8 DSP56367 MOTOROLA JTAG BSDL ...
Page 484: ...D 52 DSP56367 MOTOROLA Programmer s Reference ...
Page 490: ...E 6 DSP56367 MOTOROLA Power Consumption Benchmark ...
Page 516: ...F 26 DSP56367 MOTOROLA IBIS Model ...
Page 522: ...Index 6 MOTOROLA Index ...
Page 523: ......