dsp56371 Freescale Semiconductor, Inc, dsp56371 Datasheet - Page 22

• Manufacturer Part Number: dsp56371
• Description: Dsp56371 Data Sheet
• Manufacturer: Freescale Semiconductor, Inc

Signal/Connection Descriptions
22
Signal
Name
SDO4
SDO3
SDO2
SDI1
SDI2
SDI3
PC7
PC8
PC9
Input, output, or
Input, output, or
Input, output, or
disconnected
disconnected
disconnected
Signal Type
Output
Output
Output
Input
Input
Input
Table 8. Enhanced Serial Audio Interface Signals (continued)
State during
disconnected
disconnected
disconnected
Reset
GPIO
GPIO
GPIO
DSP56371 Data Sheet, Rev. 4.1
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.
Internal Pull down resistor.
This input is 5 V tolerant.
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.
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 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.
Signal Description
Freescale Semiconductor