參數(shù)資料
型號： SPAKD56366PV120
廠商： MOTOROLA INC
元件分類： 數(shù)字信號處理
英文描述： 24-BIT, 120 MHz, OTHER DSP, PQFP144
封裝： TQFP-144
文件頁數(shù)： 63/147頁
文件大小： 2156K
代理商： SPAKD56366PV120
1-18
DSP56366 Advance Information
MOTOROLA
Signal/Connection Descriptions
Enhanced Serial Audio Interface
FST
Input or output
GPIO
disconnected
Frame Sync for Transmitter—This is the transmitter frame sync input/
output signal. For synchronous mode, this signal is the frame sync for both
transmitters and receivers. For asynchronous mode, FST is the frame sync
for the transmitters only. The direction is determined by the transmitter
frame sync direction (TFSD) bit in the ESAI transmit clock control register
(TCCR).
PC4
Input, output, or
disconnected
Port C 4—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.
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 register, synchronized by the frame sync in normal mode or the
slot in network mode.
PC0
Input, output, or
disconnected
Port C 0—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.
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 C 3—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 1-11 Enhanced Serial Audio Interface Signals (Continued)
Signal
Name
Signal Type
State during
Reset
Signal Description
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