DSP56362UM View Datasheet(PDF) - Freescale Semiconductor
Part Name
Description
Manufacturer
DSP56362UM Datasheet PDF : 152 Pages
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Signal
Name
FST
PC4
SCKR
PC0
SCKT
PC3
SDO5
SDI0
PC6
Enhanced Serial Audio Interface
Table 2-11 Enhanced Serial Audio Interface Signals (continued)
Signal Type State during Reset
Signal Description
Input or Output
Input, Output, or
Disconnected
GPIO Disconnected Frame Sync for Transmitter—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).
Port C 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 is 5 V tolerant.
Input or Output
Input, Output, or
Disconnected
GPIO Disconnected Receiver Serial Clock—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.
Port C 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 is 5 V tolerant.
Input or Output
Input, Output, or
Disconnected
GPIO Disconnected Transmitter Serial Clock—This signal provides the serial bit rate
clock for the ESAI. SCKT is a clock input or output used by all enabled
transmitters and receivers in synchronous mode, or by all enabled
transmitters in asynchronous mode.
Port C 3—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 is 5 V tolerant.
Output
Input
Input, Output, or
Disconnected
GPIO Disconnected Serial Data Output 5—When programmed as a transmitter, SDO5 is
used to transmit data from the TX5 serial transmit shift register.
Serial Data Input 0—When programmed as a receiver, SDI0 is used
to receive serial data into the RX0 serial receive shift register.
Port C 6—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 is 5 V tolerant.
Freescale Semiconductor
DSP56362 Technical Data, Rev. 4
2-17
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