参数资料
型号: DSPB56374AFC
厂商: Freescale Semiconductor
文件页数: 4/64页
文件大小: 0K
描述: IC DSP 24BIT 150MHZ 80-LQFP
标准包装: 90
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 ~ 105°C
安装类型: 表面贴装
封装/外壳: 80-LQFP
供应商设备封装: 80-LQFP(14x14)
包装: 托盘
DSP56374 Data Sheet, Rev. 4.2
Signal Groupings
Freescale Semiconductor
12
4.7
Enhanced Serial Audio Interface
Table 10. Enhanced Serial Audio Interface Signals
Signal Name
Signal Type
State during
Reset
Signal Description
HCKR
Input or output
GPIO
disconnected
High Frequency Clock for Receiver—When programmed
as an input, this signal provides a high frequency clock
source for the ESAI receiver as an alternate to the DSP
core clock. When programmed as an output, this signal can
serve as a high-frequency sample clock (e.g., for external
digital to analog converters [DACs]) or as an additional
system clock.
PC2
Input, output, or
disconnected
Port C2—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 pin has an internal pull up resistor.
This input is 5 V tolerant.
HCKT
Input or output
GPIO
disconnected
High Frequency Clock for Transmitter—When programmed
as an input, this signal provides a high frequency clock
source for the ESAI transmitter as an alternate to the DSP
core clock. When programmed as an output, this signal can
serve as a high frequency sample clock (e.g., for external
DACs) or as an additional system clock.
PC5
Input, output, or
disconnected
Port C5—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 pin has an internal pull up resistor.
This input is 5 V tolerant.
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