參數(shù)資料
型號: CS49DV8C-CVZR
廠商: Cirrus Logic Inc
文件頁數(shù): 30/30頁
文件大?。?/td> 0K
描述: IC DSP 32BIT DUAL AUDIO 128-LQFP
標準包裝: 750
系列: CS49DV8
類型: 定點
接口: I²C,SPI,UART
時鐘速率: 150MHz
非易失內(nèi)存: ROM(576 kB)
芯片上RAM: 328kB
電壓 - 輸入/輸出: 3.30V
電壓 - 核心: 1.80V
工作溫度: 0°C ~ 70°C
安裝類型: 表面貼裝
封裝/外殼: 128-LQFP
供應商設(shè)備封裝: 128-LQFP(14x20)
包裝: 帶卷 (TR)
DS868PP2
Copyright 2008 Cirrus Logic, Inc.
9
CS49DV8C Data Sheet
32-bit Audio DSP Family
4.3 DSP I/O Description
4.3.1 Multiplexed Pins
Many of the CS49DV8C pins are multi-functional. For details on pin functionality please refer to the
CS4953xx Hardware User’s Manual.
4.3.2 Termination Requirements
Open-drain pins on the CS49DV8C must be pulled high for proper operation. Please refer to the
CS4953xx Hardware User’s Manual to identify which pins are open-drain and what value of pull-up
resistor is required for proper operation.
Mode select pins on the CS49DV8C are used to select the boot mode upon the rising edge of reset. A
detailed explanation of termination requirements for each communication mode select pin can be found
in the CS4953xx Hardware User’s Manual.
4.3.3 Pads
The CS49DV8C I/O operates from the 3.3 V supply and is 5 V tolerant.
4.4 Application Code Security
The external program code may be encrypted by the programmer to protect any intellectual property it
may contain. A secret, customer-specific key is used to encrypt the program code that is to be stored
external to the device.
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