参数资料
型号: DSPB56374AEC
厂商: Freescale Semiconductor
文件页数: 11/64页
文件大小: 0K
描述: IC DSP 24BIT 150MHZ 52-LQFP
产品变化通告: Product Discontinuation 24/Feb/2012
标准包装: 160
系列: DSP56K/Symphony
类型: 音频处理器
接口: 主机接口,I²C,SAI,SPI
时钟速率: 150MHz
非易失内存: ROM(84 kB)
芯片上RAM: 54kB
电压 - 输入/输出: 3.30V
电压 - 核心: 1.25V
工作温度: -40°C ~ 110°C
安装类型: 表面贴装
封装/外壳: 52-LQFP
供应商设备封装: 52-LQFP(10x10)
包装: 托盘
Signal Groupings
DSP56374 Data Sheet, Rev. 4.2
Freescale Semiconductor
19
SCKR_1
Input or output
GPIO
disconnected
Receiver Serial Clock_1—SCKR_1 provides the receiver
serial bit clock for the ESAI_1. The SCKR_1 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_1 register. When
configured as the output flag OF0, this pin will reflect the
value of the OF0 bit in the SAICR_1 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_1 register,
synchronized by the frame sync in normal mode or the slot
in network mode.
PE0
Input, output, or
disconnected
Port E0—When the ESAI_1 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_1
Input or output
GPIO
disconnected
Transmitter Serial Clock_1—This signal provides the serial
bit rate clock for the ESAI_1. SCKT_1 is a clock input or
output used by all enabled transmitters and receivers in
synchronous mode, or by all enabled transmitters in
asynchronous mode.
PE3
Input, output, or
disconnected
Port E3—When the ESAI_1 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 11. Enhanced Serial Audio Interface_1 Signals (continued)
Signal Name
Signal Type
State during
Reset
Signal Description
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