ADSP-BF538F View Datasheet(PDF) - Analog Devices
Part Name
Description
MFG CO.
'ADSP-BF538F' PDF : 56 Pages View PDF
Preliminary Technical Data
ADSP-BF538/ADSP-BF538F
Serial Port Timing
Table 24 through Table 27 on Page 36 and Figure 22 on Page 36
through Figure 24 on Page 38 describe Serial Port operations.
Table 24. Serial Ports—External Clock
Parameter
Timing Requirements
tSFSE
TFS/RFS Setup Before TSCLK/RSCLK (externally generated TFS/RFS)1
tHFSE
TFS/RFS Hold After TSCLK/RSCLK (externally generated TFS/RFS)1
tSDRE
Receive Data Setup Before RSCLK1
tHDRE
Receive Data Hold After RSCLK1
tSCLKEW
TSCLK/RSCLK Width
tSCLKE
TSCLK/RSCLK Period
Switching Characteristics
tDFSE
TFS/RFS Delay After TSCLK/RSCLK (Internally Generated TFS/RFS)2
tHOFSE
TFS/RFS Hold After TSCLK/RSCLK (Internally Generated TFS/RFS)2
tDDTE
Transmit Data Delay After TSCLK2
tHDTE
Transmit Data Hold After TSCLK2
1 Referenced to sample edge.
2 Referenced to drive edge.
Table 25. Serial Ports—Internal Clock
Parameter
Timing Requirements
tSFSI
TFS/RFS Setup Before TSCLK/RSCLK (externally generated TFS/RFS)1
tHFSI
TFS/RFS Hold After TSCLK/RSCLK (externally generated TFS/RFS)1
tSDRI
Receive Data Setup Before RSCLK1
tHDRI
Receive Data Hold After RSCLK1
tSCLKEW
tSCLKE
TSCLK/RSCLK Width
TSCLK/RSCLK Period
Switching Characteristics
tDFSI
TFS/RFS Delay After TSCLK/RSCLK (Internally Generated TFS/RFS)2
tHOFSI
TFS/RFS Hold After TSCLK/RSCLK (Internally Generated TFS/RFS)2
tDDTI
Transmit Data Delay After TSCLK2
tHDTI
Transmit Data Hold After TSCLK2
tSCLKIW
TSCLK/RSCLK Width
1 Referenced to sample edge.
2 Referenced to drive edge.
Table 26. Serial Ports—Enable and Three-State
Parameter
Switching Characteristics
tDTENE
Data Enable Delay from External TSCLK1
tDDTTE
Data Disable Delay from External TSCLK1
tDTENI
Data Enable Delay from Internal TSCLK1
tDDTTI
Data Disable Delay from Internal TSCLK1
1 Referenced to drive edge.
Min
Max
Unit
3.0
ns
3.0
ns
3.0
ns
3.0
ns
4.5
ns
15.0
ns
10.0
ns
0.0
ns
10.0
ns
0.0
ns
Min
Max
Unit
8.0
ns
–2.0
ns
6.0
ns
0.0
ns
4.5
ns
15.0
ns
3.0
ns
–1.0
ns
3.0
ns
–2.0
ns
4.5
ns
Min
Max
Unit
0
ns
10.0
ns
–2.0
ns
3.0
ns
Rev. PrD | Page 35 of 56 | May 2006
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