11-16
DSP56367
MOTOROLA
Enhanced Serial Audio Interface 1 (ESAI_1)
Operating Modes
11.4
OPERATING MODES
11.4.1
ESAI_1 AFTER RESET
Hardware or software reset clears the EMUXR register, the port E control register bits and the
port E direction control register bits, which configure all 6 ESAI_1 dedicated I/O pins as
disconnected, and all 4 shared pins as belonging to the ESAI. The ESAI_1 is in the individual
reset state while all ESAI_1 signals are programmed as general-purpose I/O or disconnected,
and is active only if at least one of the ESAI_1 I/O pins is programmed as belonging to the
ESAI_1.
11.5
GPIO - PINS AND REGISTERS
The GPIO functionality of the ESAI_1 port is controlled by three registers: Port E Control
register (PCRE), Port E Direction register (PRRE) and Port E Data register (PDRE).
11.5.1
PORT E CONTROL REGISTER (PCRE)
The read/write 24-bit Port E Control Register (PCRE) in conjunction with the Port E
Direction Register (PRRE) controls the functionality of the ESAI_1 GPIO pins. Each of the
PE(11:0) bits controls the functionality of the corresponding port pin. See Table 11-4 for the
port pin configurations. Hardware and software reset clear all PCRE bits.
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 ...
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