10-54
DSP56367
MOTOROLA
Enhanced Serial Audio Interface (ESAI)
GPIO - Pins and Registers
10.5.2
PORT C DIRECTION REGISTER (PRRC)
The read/write 24-bit Port C Direction Register (PRRC) in conjunction with the Port C
Control Register (PCRC) controls the functionality of the ESAI GPIO pins. Table 10-12
describes the port pin configurations. Hardware and software reset clear all PRRC bits.
Table 10-12 PCRC and PRRC Bits Functionality
PDC[i]
PC[i]
Port Pin[i] Function
0
0
disconnected
0
1
GPIO input
1
0
GPIO output
1
1
ESAI
11
10
9
8
7
6
5
4
3
2
1
0
X:$FFFFBF
PC11
PC10
PC9
PC8
PC7
PC6
PC5
PC4
PC3
PC2
PC1
PC0
23
22
21
20
19
18
17
16
15
14
13
12
Reserved bit - read as zero; should be written with zero for future compatibility.
Figure 10-19 PCRC Register
11
10
9
8
7
6
5
4
3
2
1
0
X:$FFFFBE
PDC11
PDC10
PDC9
PDC8
PDC7
PDC6
PDC5
PDC4
PDC3
PDC2
PDC1
PDC0
23
22
21
20
19
18
17
16
15
14
13
12
Reserved bit - read as zero; should be written with zero for future compatibility.
Figure 10-20 PRRC Register
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: ......