DSP56374UMSLASHD datasheet(16/64 Pages) FREESCALE

16 / 64 page

DSP56374 Data Sheet, Rev. 4.2

Signal Groupings

Freescale Semiconductor

SDO2

Output

GPIO

disconnected

Serial Data Output 2—When programmed as a transmitter,

SDO2 is used to transmit data from the TX2 serial transmit

shift register

SDI3

Input

Serial Data Input 3—When programmed as a receiver,

SDI3 is used to receive serial data into the RX3 serial

receive shift register.

PC9

Input, output, or

disconnected

Port C9—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.

SDO1

Output

GPIO

disconnected

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

the TX1 serial transmit shift register.

PC10

Input, output, or

disconnected

Port C10—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.

SDO0

Output

GPIO

disconnected

Serial Data Output 0—SDO0 is used to transmit data from

the TX0 serial transmit shift register.

PC11

Input, output, or

disconnected

Port C11—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.

Table 10. Enhanced Serial Audio Interface Signals (continued)

Signal Name

Signal Type

State during

Reset

Signal Description

DSP56374UM/D Datasheet(PDF) 16 Page - Freescale Semiconductor, Inc

DSP56374UM/D Datasheet(HTML) 16 Page - Freescale Semiconductor, Inc

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