DSP56374 Datasheet, PDF (21/64 Pages) Motorola, Inc – high density CMOS device with 3.3 V inputs and outputs

Signal Groupings
Table 11. Enhanced Serial Audio Interface_1 Signals (continued)
Signal Name Signal Type
State during
Reset
Signal Description
SDO2_1
SDI3_1
PE9
Output
Input
Input, output, or
disconnected
GPIO
disconnected
Serial Data Output 2—When programmed as a transmitter,
SDO2_1 is used to transmit data from the TX2 serial
transmit shift register.
Serial Data Input 3—When programmed as a receiver,
SDI3_1 is used to receive serial data into the RX3 serial
receive shift register.
Port E9—When the ESAI_1 is configured as GPIO, this
signal is individually programmable as input, output, or
internally disconnected.
The default state after reset is GPIO disconnected.
SDO1_1
PE10
Output
Input, output, or
disconnected
Internal Pull down resistor.
This input is 5 V tolerant.
GPIO
Serial Data Output 1—SDO1_1 is used to transmit data
disconnected from the TX1 serial transmit shift register.
Port E10—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.
SDO0_1
PE11
Output
Input, output, or
disconnected
Internal Pull down resistor.
This input is 5 V tolerant.
GPIO
Serial Data Output 0—SDO0_1 is used to transmit data
disconnected from the TX0 serial transmit shift register.
Port E11—When the ESAI_1 is configured as GPIO, this
signal is individually programmable as input, output, or
internally disconnected.
The default state after reset is GPIO disconnected.
Internal Pull down resistor.
This input is 5 V tolerant.
DSP56374 Data Sheet, Rev. 4.2
Freescale Semiconductor
21