參數(shù)資料
型號: ADSP-21267
廠商: Analog Devices, Inc.
英文描述: Preliminary Technical Data
中文描述: 初步技術(shù)數(shù)據(jù)
文件頁數(shù): 33/44頁
文件大?。?/td> 454K
代理商: ADSP-21267
ADSP-21267
Rev. PrA
|
Page 33 of 44
|
January 2004
PRELIMINARY TECHNICAL DATA
SPI Interface—Master
Table 28. SPI Interface Protocol — Master Switching and Timing Specifications
Parameter
Timing Requirements
t
SSPIDM
t
HSPIDM
Min
Max
Unit
Data input valid to SPICLK edge (data input set-up time)
SPICLK Last Sampling Edge to Data Input Not Valid
5
2
ns
ns
Switching Characteristics
t
SPICLKM
t
SPICHM
t
SPICLM
t
DDSPIDM
t
HDSPIDM
t
SDSCIM
t
HDSM
t
SPITDM
Serial Clock Cycle
SeriaL Clock High Period
SeriaL Clock Low Period
SPICLK Edge to Data Out Valid (Data Out Delay Time)
SPICLK Edge to Data Out Not Valid (Data Out Hold Time)
FLAG3-0 OUT (SPI Device Select) Low to First SPICLK Edge
Last SPICLK Edge to FLAG3-0 OUT High
Sequential Transfer Delay
8 x t
CCLK
4 x t
CCLK
– 2
4 x t
CCLK
– 2
ns
ns
ns
ns
ns
ns
ns
ns
3
10
4 x t
CCLK
– 2
4 x t
CCLK
– 1
4 x t
CCLK
– 1
Figure 25. SPI Master Timing
LSB
VALID
MSB
VALID
t
SSPIDM
t
HSPIDM
t
HDSPIDM
LSB
MSB
t
HSPIDM
t
DDSPIDM
MOSI
(OUTPUT)
MISO
(INPUT)
FLG3-0
(OUTPUT)
SPICLK
(CP = 0)
(OUTPUT)
SPICLK
(CP = 1)
(OUTPUT)
t
SPICHM
t
SPICLM
t
SPICLM
t
SPICLKM
t
SPICHM
t
HDSM
t
SPITDM
t
HDSPIDM
LSB
VALID
LSB
MSB
MSB
VALID
t
HSPIDM
t
DDSPIDM
MOSI
(OUTPUT)
MISO
(INPUT)
t
SSPIDM
CPHASE = 1
CPHASE = 0
t
SDSCIM
t
SSPIDM
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ADSP-21362BBCZ-1AA 功能描述:數(shù)字信號處理器和控制器 - DSP, DSC 333 MHz Processor includes DTCP/SPDIF RoHS:否 制造商:Microchip Technology 核心:dsPIC 數(shù)據(jù)總線寬度:16 bit 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:2 KB 最大時鐘頻率:40 MHz 可編程輸入/輸出端數(shù)量:35 定時器數(shù)量:3 設(shè)備每秒兆指令數(shù):50 MIPs 工作電源電壓:3.3 V 最大工作溫度:+ 85 C 封裝 / 箱體:TQFP-44 安裝風(fēng)格:SMD/SMT