參數(shù)資料
型號: ADSP-21061LKB-160
廠商: Analog Devices Inc
文件頁數(shù): 32/52頁
文件大?。?/td> 0K
描述: IC DSP CONTROLLER 32BIT 225BGA
產(chǎn)品培訓模塊: SHARC Processor Overview
標準包裝: 1
系列: SHARC®
類型: 浮點
接口: 同步串行端口(SSP)
時鐘速率: 40MHz
非易失內(nèi)存: 外部
芯片上RAM: 128kB
電壓 - 輸入/輸出: 3.30V
電壓 - 核心: 3.30V
工作溫度: 0°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: 225-BBGA
供應商設備封裝: 225-PBGA
包裝: 托盤
Rev. D | Page 38 of 52 | May 2013
Serial Ports
To determine whether communication is possible between two
devices at clock speed n, the following specifications must be
confirmed: 1) frame sync delay and frame sync setup and hold,
2) data delay and data setup and hold, and 3) SCLK width.
Table 21. Serial Ports—External Clock
Parameter
5 V and 3.3 V
Unit
Min
Max
Timing Requirements
tSFSE
TFS/RFS Setup Before TCLK/RCLK1
3.5
ns
tHFSE
TFS/RFS Hold After TCLK/RCLK1, 2
4ns
tSDRE
Receive Data Setup Before RCLK1
1.5
ns
tHDRE
Receive Data Hold After RCLK1
4ns
tSCLKW
TCLK/RCLK Width
9
ns
tSCLK
TCLK/RCLK Period
tCK
ns
1 Referenced to sample edge.
2 RFS hold after RCK when MCE = 1, MFD = 0 is 0 ns minimum from drive edge. TFS hold after TCK for late external TFS is 0 ns minimum from drive edge.
Table 22. Serial Ports—Internal Clock
Parameter
5 V and 3.3 V
Unit
Min
Max
Timing Requirements
tSFSI
TFS Setup Before TCLK1; RFS Setup Before RCLK1
8ns
tHFSI
TFS/RFS Hold After TCLK/RCLK1, 2
1ns
tSDRI
Receive Data Setup Before RCLK1
3ns
tHDRI
Receive Data Hold After RCLK1
3ns
1 Referenced to sample edge.
2 RFS hold after RCK when MCE = 1, MFD = 0 is 0 ns minimum from drive edge. TFS hold after TCK for late external TFS is 0 ns minimum from drive edge.
Table 23. Serial Ports—External or Internal Clock
Parameter
5 V and 3.3 V
Unit
Min
Max
Switching Characteristics
tDFSE
RFS Delay After RCLK (Internally Generated RFS)1
13
ns
tHOFSE
RFS Hold After RCLK (Internally Generated RFS)1
3ns
1 Referenced to drive edge.
Table 24. Serial Ports—External Clock
Parameter
5 V and 3.3 V
Unit
Min
Max
Switching Characteristics
tDFSE
TFS Delay After TCLK (Internally Generated TFS)1
13
ns
tHOFSE
TFS Hold After TCLK (Internally Generated TFS)1
3ns
tDDTE
Transmit Data Delay After TCLK1
16
ns
tHODTE
Transmit Data Hold After TCLK1
5ns
1 Referenced to drive edge.
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