DSP56367P View Datasheet(PDF) - Freescale Semiconductor
Part Name
Description
Manufacturer
DSP56367P Datasheet PDF : 100 Pages
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Enhanced Serial Audio Interface_1
Table 2-12 Enhanced Serial Audio Interface_1 Signals (continued)
Signal
Name
Signal Type
State during
Reset
Signal Description
SCKR_1 Input or Output
PE0 Input, Output, or
Disconnected
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.
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.
SCKT_1 Input or Output
PE3 Input, Output, or
Disconnected
GPIO
Disconnected
Transmitter Serial Clock_1—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 E 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 cannot tolerate 3.3V.
SDO5_1
Output
SDI0_1
Input
PE6 Input, Output, or
Disconnected
GPIO
Disconnected
Serial Data Output 5_1—When programmed as a transmitter, SDO5 is used
to transmit data from the TX5 serial transmit shift register.
Serial Data Input 0_1—When programmed as a receiver, SDI0 is used to
receive serial data into the RX0 serial receive shift register.
Port E 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 cannot tolerate 3.3V.
SDO4_1
Output
SDI1_1
Input
PE7 Input, Output, or
Disconnected
GPIO
Disconnected
Serial Data Output 4_1—When programmed as a transmitter, SDO4 is used
to transmit data from the TX4 serial transmit shift register.
Serial Data Input 1_1—When programmed as a receiver, SDI1 is used to
receive serial data into the RX1 serial receive shift register.
Port E 7—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 3.3V tolerant.
Freescale Semiconductor
DSP56367 Technical Data, Rev. 2.1
2-17
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