DSP56371 datasheet(21/68 Pages) FREESCALE

21 / 68 page

Signal/Connection Descriptions

DSP56371 Data Sheet, Rev. 4.1

Freescale Semiconductor

SCKR

Input or output

GPIO

disconnected

Receiver Serial Clock—SCKR provides the receiver serial bit

clock for the ESAI. The SCKR operates as a clock input or output

used by all the enabled receivers in the asynchronous mode

(SYN=0), or as serial flag 0 pin in the synchronous mode (SYN=1).

When this pin is configured as serial flag pin, its direction is

determined by the RCKD bit in the RCCR register. When

configured as the output flag OF0, this pin will reflect the value of

the OF0 bit in the SAICR register, and the data in the OF0 bit will

show up at the pin synchronized to the frame sync in normal mode

or the slot in network mode. When configured as the input flag IF0,

the data value at the pin will be stored in the IF0 bit in the SAISR

in network mode.

PC0

Input, output, or

disconnected

Port C0—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.

SCKT

Input or output

GPIO

disconnected

Transmitter Serial Clock—This signal provides the serial bit rate

clock for the ESAI. SCKT is a clock input or output used by all

enabled transmitters and receivers in synchronous mode, or by all

enabled transmitters in asynchronous mode.

PC3

Input, output, or

disconnected

Port C3—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.

SDO5

Output

GPIO

disconnected

Serial Data Output 5—When programmed as a transmitter, SDO5

is used to transmit data from the TX5 serial transmit shift register.

SDI0

Input

Serial Data Input 0—When programmed as a receiver, SDI0 is

used to receive serial data into the RX0 serial receive shift register.

PC6

Input, output, or

disconnected

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.

Internal Pull down resistor.

This input is 5 V tolerant.

Table 8. Enhanced Serial Audio Interface Signals (continued)

Signal

Name

Signal Type

State during

Reset

Signal Description

DSP56371 Arkusz danych(PDF) 21 Page - Freescale Semiconductor, Inc

DSP56371 Arkusz danych(HTML) 21 Page - Freescale Semiconductor, Inc

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68

Arkusz danych Pobierz

Link URL