参数资料
型号: ADSP-21375KSWZ-2B
厂商: Analog Devices Inc
文件页数: 45/56页
文件大小: 0K
描述: IC DSP 32BIT 266MHZ 208-MQFP
产品培训模块: SHARC Processor Overview
标准包装: 36
系列: SHARC®
类型: 浮点
接口: DAI,DPI
时钟速率: 266MHz
非易失内存: ROM(256 kB)
芯片上RAM: 64kB
电压 - 输入/输出: 3.30V
电压 - 核心: 1.20V
工作温度: 0°C ~ 70°C
安装类型: 表面贴装
封装/外壳: 208-LQFP 裸露焊盘
供应商设备封装: 208-LQFP-EP(28x28)
包装: 托盘
SPI Interface—Slave
Table 38. SPI Interface Protocol—Slave Switching and Timing Specifications
1.0 V, 200 MHz
1.2 V, 266 MHz
Parameter
Min
Max
Min
Max
Unit
Timing Requirements
t SPICLKS
t SPICHS
t SPICLS
t SDSCO
t HDS
t SSPIDS
t HSPIDS
t SDPPW
Serial Clock Cycle
Serial Clock High Period
Serial Clock Low Period
SPIDS Assertion to First SPICLK Edge
CPHASE = 0
CPHASE = 1
Last SPICLK Edge to SPIDS Not Asserted (CPHASE=0)
Data Input Valid to SPICLK edge (Data Input Set-up Time)
SPICLK Last Sampling Edge to Data Input Not Valid
SPIDS Deassertion Pulse Width (CPHASE=0)
4 × t PCLK – 2
2 × t PCLK – 2
2 × t PCLK – 2
2 × t PCLK
2 × t PCLK
2 × t PCLK
2
2
2 × t PCLK
4 × t PCLK – 2
2 × t PCLK – 2
2 × t PCLK – 2
2 × t PCLK
2 × t PCLK
2 × t PCLK
2
2
2 × t PCLK
ns
ns
ns
ns
ns
ns
ns
ns
Switching Characteristics
t DSOE
t DSDHI
SPIDS Assertion to Data Out Active
SPIDS Deassertion to Data High Impedance
0
0
6.8
9.9
0
0
6.8
6.8
ns
ns
t DDSPIDS
t HDSPIDS
t DSOV
SPICLK Edge to Data Out Valid (Data Out Delay Time)
SPICLK Edge to Data Out Not Valid (Data Out Hold Time)
SPIDS Assertion to Data Out Valid (CPHASE = 0)
2 × t PCLK
9.5
5 × t PCLK
2 × t PCLK
9.5
5 × t PCLK
ns
ns
ns
SPIDS
(INPUT)
SPICLK
(CP = 0,
CP = 1)
(INPUT)
t SDSCO
t DSOE
t SPICHS
t DDSPIDS
t SPICLS
t SPICLKS
t DDSPIDS
t HDS
t SDPPW
t DSDHI
t HDSPIDS
MISO
(OUTPUT)
CPHASE = 1
MOSI
(INPUT)
t SSPIDS t HSPIDS
t HDSPIDS
t DSDHI
MISO
(OUTPUT)
CPHASE = 0
t DSOV
t SSPIDS
t HSPIDS
MOSI
(INPUT)
Figure 32. SPI Slave Timing
Rev. D | Page 45 of 56 | April 2013
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