Signal/Connection Descriptions
Enhanced Serial Audio Interface_1
MOTOROLA
DSP56367
2-19
2.10
ENHANCED SERIAL AUDIO INTERFACE_1
Table 2-12 Enhanced Serial Audio Interface_1 Signals
Signal
Name
Signal Type
State during Reset
Signal Description
FSR_1
Input or output
GPIO disconnected
Frame Sync for Receiver_1—This is the receiver frame sync input/output
signal. In the asynchronous mode (SYN=0), the FSR pin operates as the frame
sync input or output used by all the enabled receivers. In the synchronous
mode (SYN=1), it operates as either the serial flag 1 pin (TEBE=0), or as the
transmitter external buffer enable control (TEBE=1, RFSD=1).
When this pin is configured as serial flag pin, its direction is determined by
the RFSD bit in the RCCR register. When configured as the output flag OF1,
this pin will reflect the value of the OF1 bit in the SAICR register, and the
data in the OF1 bit will show up at the pin synchronized to the frame sync in
normal mode or the slot in network mode. When configured as the input flag
IF1, the data value at the pin will be stored in the IF1 bit in the SAISR
register, synchronized by the frame sync in normal mode or the slot in
network mode.
PE1
Input, output, or
disconnected
Port E 1—When the ESAI is configured as GPIO, this signal is individually
programmable as input, output, or internally disconnected.
The default state after reset is GPIO disconnected.
This input cannot tolerate 3.3V.
FST_1
Input or output
GPIO disconnected
Frame Sync for Transmitter_1—This is the transmitter frame sync
input/output signal. For synchronous mode, this signal is the frame sync for
both transmitters and receivers. For asynchronous mode, FST is the frame
sync for the transmitters only. The direction is determined by the transmitter
frame sync direction (TFSD) bit in the ESAI transmit clock control register
(TCCR).
PE4
Input, output, or
disconnected
Port E 4—When the ESAI is configured as GPIO, this signal is individually
programmable as input, output, or internally disconnected.
The default state after reset is GPIO disconnected.
This input cannot tolerate 3.3V.
SCKR_1
Input or output
GPIO disconnected
Receiver Serial Clock_1—SCKR provides the receiver serial bit clock for
the ESAI. The SCKR operates as a clock input or output used by all the
enabled receivers in the asynchronous mode (SYN=0), or as serial flag 0 pin
in the synchronous mode (SYN=1).
When this pin is configured as serial flag pin, its direction is determined by
the RCKD bit in the RCCR register. When configured as the output flag OF0,
this pin will reflect the value of the OF0 bit in the SAICR register, and the
data in the OF0 bit will show up at the pin synchronized to the frame sync in
normal mode or the slot in network mode. When configured as the input flag
IF0, the data value at the pin will be stored in the IF0 bit in the SAISR
register, synchronized by the frame sync in normal mode or the slot in
network mode.
PE0
Input, output, or
disconnected
Port E 0—When the ESAI is configured as GPIO, this signal is individually
programmable as input, output, or internally disconnected.
The default state after reset is GPIO disconnected.
This input cannot tolerate 3.3V.
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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