DSPB56364AF100 Datasheet, PDF (15/148 Pages) Freescale Semiconductor, Inc – 24-Bit Audio Digital Signal Processor

Enhanced Serial Audio Interface
Table 2-10 Enhanced Serial Audio Interface Signals (continued)
Signal
Name
Signal Type
State During
Reset
Signal Description
SDI1
Input
GPIO
Serial Data Input 1—When programmed as a receiver, SDI1 is used to receive
disconnected serial data into the RX1 serial receive shift register.
PC7 Input, output, or
GPIO
Port C 7—When the ESAI is configured as GPIO, this signal is individually
disconnected disconnected programmable as input, output, or internally disconnected.
The default state after reset is GPIO disconnected.
This input is 5 V tolerant.
SDO3
Output
GPIO
Serial Data Output 3—When programmed as a transmitter, SDO3 is used to
disconnected transmit data from the TX3 serial transmit shift register.
SDI2
Input
GPIO
Serial Data Input 2—When programmed as a receiver, SDI2 is used to receive
disconnected serial data into the RX2 serial receive shift register.
PC8 Input, output, or
GPIO
Port C 8—When the ESAI is configured as GPIO, this signal is individually
disconnected disconnected programmable as input, output, or internally disconnected.
The default state after reset is GPIO disconnected.
This input is 5 V tolerant.
SDO2
Output
GPIO
Serial Data Output 2—When programmed as a transmitter, SDO2 is used to
disconnected transmit data from the TX2 serial transmit shift register
SDI3
Input
GPIO
Serial Data Input 3—When programmed as a receiver, SDI3 is used to receive
disconnected serial data into the RX3 serial receive shift register.
PC9 Input, output, or
GPIO
Port C 9—When the ESAI is configured as GPIO, this signal is individually
disconnected disconnected programmable as input, output, or internally disconnected.
The default state after reset is GPIO disconnected.
This input is 5 V tolerant.
SDO1
Output
GPIO
Serial Data Output 1—SDO1 is used to transmit data from the TX1 serial
disconnected transmit shift register.
PC10
Input, output, or
disconnected
GPIO
disconnected
Port C 10—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.
SDO0
Output
GPIO
Serial Data Output 0—SDO0 is used to transmit data from the TX0 serial
disconnected transmit shift register.
PC11
Input, output, or
disconnected
GPIO
disconnected
Port C 11—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
DSP56364 Technical Data, Rev. 4.1
2-11