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ADSP-21990 View Datasheet(PDF) - Analog Devices

Part Name
Description
MFG CO.
ADSP-21990
ADI
Analog Devices ADI
'ADSP-21990' PDF : 50 Pages View PDF
ADSP-21990
5 Only applies to SPORT.
6 MCE = 1, TFS enable, and TFS valid follow tDDTENFS and tDDTLFSE.
7 If external RFSD/TFS setup to RCLK/TCLK > 0.5tLSCK, tDDTLSCK and tDTENLSCK apply; otherwise, tDDTLFSE and tDTENLFS apply.
DATA RECEIVE-INTERNAL CLOCK
DRIVE
EDGE
tSCLKIW
RCLK
tDFSE
tHOFSE
tSFSI
RFS
SAMPLE
EDGE
tHFSI
tSDRI
tHDRI
DR
DATA RECEIVE-EXTERNAL CLOCK
DRIVE
EDGE
tSCLKW
RCLK
tDFSE
tHOFSE
tSFSE
RFS
SAMPLE
EDGE
tHFSE
tSDRE
tHDRE
DR
NOTE: EITHER THE RISING EDGE OR FALLING EDGE OF RCLK OR TCLK CAN BE USED AS THE ACTIVE SAMPLING EDGE.
DATA TRANSMIT-INTERNAL CLOCK
DRIVE
EDGE
tSCLKIW
TCLK
tDFSE
tHOFSE
tSFSI
SAMPLE
EDGE
tHFSI
TFS
tHDTI tDDTI
DATA TRANSMIT-EXTERNAL CLOCK
DRIVE
EDGE
tSCLKW
TCLK
tDFSE
tHOFSE
tSFSE
TFS
tDDTE
tHDTE
SAMPLE
EDGE
tHFSE
DT
DT
NOTE: EITHER THE RISING EDGE OR FALLING EDGE OF RCLK OR TCLK CAN BE USED AS THE ACTIVE SAMPLING EDGE.
TCLK (EXT)
TFS (“LATE,” EXT)
DT
TCLK (INT)
TFS (“LATE,” INT)
DRIVE
EDGE
tDDTEN
DRIVE
EDGE
tDDTIN
DT
TCLK/RCLK
TCLK/RCLK
DRIVE
EDGE
tDDTTE
DRIVE
EDGE
tDDTTI
Figure 13. Serial Port
Rev. A | Page 34 of 50 | August 2007
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