參數(shù)資料
型號(hào): DSPB56374AEC
廠商: Freescale Semiconductor
文件頁(yè)數(shù): 4/64頁(yè)
文件大?。?/td> 0K
描述: IC DSP 24BIT 150MHZ 52-LQFP
產(chǎn)品變化通告: Product Discontinuation 24/Feb/2012
標(biāo)準(zhǔn)包裝: 160
系列: DSP56K/Symphony
類型: 音頻處理器
接口: 主機(jī)接口,I²C,SAI,SPI
時(shí)鐘速率: 150MHz
非易失內(nèi)存: ROM(84 kB)
芯片上RAM: 54kB
電壓 - 輸入/輸出: 3.30V
電壓 - 核心: 1.25V
工作溫度: -40°C ~ 110°C
安裝類型: 表面貼裝
封裝/外殼: 52-LQFP
供應(yīng)商設(shè)備封裝: 52-LQFP(10x10)
包裝: 托盤(pán)
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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