DSP56362P datasheet(24/152 Pages) FREESCALE

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Enhanced Serial Audio Interface

DSP56362 Technical Data, Rev. 4

2-18

Freescale Semiconductor

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 5 V tolerant.

SDO3

SDI2

PC8

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.

Serial Data Input 2—When programmed as a receiver, SDI2 is used

to receive serial data into the RX2 serial receive shift register.

Port C 8—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.

SDO2

SDI3

PC9

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.

Serial Data Input 3—When programmed as a receiver, SDI3 is used

to receive serial data into the RX3 serial receive shift register.

Port C 9—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.

SDO1

PC10

Output

Input, Output, or

Disconnected

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

serial transmit shift register.

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

PC11

Output

Input, Output, or

Disconnected

GPIO Disconnected Serial Data Output 0—SDO0 is used to transmit data from the TX0

serial transmit shift register.

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.

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

Signal

Name

Signal Type

State during Reset

Signal Description

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