DSP56367 datasheet(19/100 Pages) FREESCALE

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Enhanced Serial Audio Interface

DSP56367 Technical Data, Rev. 2.1

Freescale Semiconductor

2-15

SDO4

SDI1

PC7

Output

Input

Input, Output, or

Disconnected

GPIO

Disconnected

Serial Data Output 4—When programmed as a transmitter, SDO4 is used to

transmit data from the TX4 serial transmit shift register.

Serial Data Input 1—When programmed as a receiver, SDI1 is used to

receive serial data into the RX1 serial receive shift register.

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 3.3V tolerant.

SDO3/

SDO3_1

SDI2/

SDI2_1

PC8/PE8

Output

Input

Input, Output, or

Disconnected

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.

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.

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 3.3V tolerant.

SDO2/

SDO2_1

SDI3/

SDI3_1

PC9/PE9

Output

Input

Input, Output, or

Disconnected

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.

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.

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 3.3V tolerant.

SDO1/

SDO1_1

PC10/

PE10

Output

Input, Output, or

disconnected

GPIO

Disconnected

Serial Data Output 1—SDO1 is used to transmit data from the TX1 serial

transmit shift register.

When enabled for ESAI_1 operation, this is the ESAI_1 Serial Data Output 1.

Port C 10—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 10 signal.

The default state after reset is GPIO disconnected.

This input is 3.3V tolerant.

Table 2-11 Enhanced Serial Audio Interface Signals (continued)

Signal

Name

Signal Type

State during

Reset

Signal Description

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