DSP56374UM View Datasheet(PDF) - Freescale Semiconductor

Part Name

Description

Manufacturer

DSP56374UM

High-Density CMOS device

Freescale Semiconductor 

Signal Groupings

Table 10. Enhanced Serial Audio Interface Signals (continued)

Signal Name Signal Type

State during

Reset

Signal Description

SDO5

SDI0

PC6

Output

Input

Input, output, or

disconnected

GPIO

disconnected

Serial Data Output 5—When programmed as a transmitter,

SDO5 is used to transmit data from the TX5 serial transmit

shift register.

Serial Data Input 0—When programmed as a receiver,

SDI0 is used to receive serial data into the RX0 serial

receive shift register.

Port C6—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.

SDO4

SDI1

PC7

Output

Input

Input, output, or

disconnected

Internal Pull down resistor.

This input is 5 V tolerant.

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 C7—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.

SDO3

SDI2

PC8

Output

Input

Input, output, or

disconnected

Internal Pull down resistor.

This input is 5 V tolerant.

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 C8—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.

Internal Pull down resistor.

This input is 5 V tolerant.

DSP56374 Data Sheet, Rev. 4.2

Freescale Semiconductor

15

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