DSP56366 Technical Data, Rev. 3.1
2-16
Freescale Semiconductor
PC6
Input, output, or
disconnected
GPIO
disconnected
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.
SDO4
Output
GPIO
disconnected
Serial Data Output 4
—When programmed as a transmitter, SDO4 is used to
transmit data from the TX4 serial transmit shift register.
SDI1
Input
GPIO
disconnected
Serial Data Input 1
—When programmed as a receiver, SDI1 is used to
receive serial data into the RX1 serial receive shift register.
PC7
Input, output, or
disconnected
GPIO
disconnected
Port C 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 5 V tolerant.
SDO3/SD
O3_1
Output
GPIO
disconnected
Serial Data Output 3
—When programmed as a transmitter, SDO3 is used to
transmit data from the TX3 serial transmit shift register.
When enabled for ESAI_1 operation, this is the ESAI_1 Serial Data Output 3.
SDI2/
SDI2_1
Input
GPIO
disconnected
Serial Data Input 2
—When programmed as a receiver, SDI2 is used to
receive serial data into the RX2 serial receive shift register.
When enabled for ESAI_1 operation, this is the ESAI_1 Serial Data Input 2.
PC8/PE8
Input, output, or
disconnected
GPIO
disconnected
Port C 8
—When the ESAI is configured as GPIO, this signal is individually
programmable as input, output, or internally disconnected.
When enabled for ESAI_1 GPIO, this is the Port E 8 signal.
The default state after reset is GPIO disconnected.
This input is 5 V tolerant.
SDO2/
SDO2_1
Output
GPIO
disconnected
Serial Data Output 2
—When programmed as a transmitter, SDO2 is used to
transmit data from the TX2 serial transmit shift register.
When enabled for ESAI_1 operation, this is the ESAI_1 Serial Data Output 2.
SDI3/SDI3
_1
Input
GPIO
disconnected
Serial Data Input 3
—When programmed as a receiver, SDI3 is used to
receive serial data into the RX3 serial receive shift register.
When enabled for ESAI_1 operation, this is the ESAI_1 Serial Data Input 3.
PC9/PE9
Input, output, or
disconnected
GPIO
disconnected
Port C 9
—When the ESAI is configured as GPIO, this signal is individually
programmable as input, output, or internally disconnected.
When enabled for ESAI_1 GPIO, this is the Port E 9 signal.
The default state after reset is GPIO disconnected.
This input is 5 V tolerant.
Table 2-11 Enhanced Serial Audio Interface Signals (continued)
Signal
Name
Signal Type
State during
Reset
Signal Description