ADSP-BF518KSWZ-ENG View Datasheet(PDF) - Analog Devices
Part Name
Description
Manufacturer
ADSP-BF518KSWZ-ENG Datasheet PDF : 62 Pages
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Preliminary Technical Data
ADSP-BF512/BF514/BF516/BF518 (F)
Serial Ports
Table 27 through Table 30 on Page 38 and Figure 18 on Page 38
through Figure 19 on Page 39 describe serial port operations.
Table 27. Serial Ports—External Clock
Parameter
Timing Requirements
tSFSE
TFSx/RFSx Setup Before TSCLKx/RSCLKx1
tHFSE
TFSx/RFSx Hold After TSCLKx/RSCLKx1
tSDRE
Receive Data Setup Before RSCLKx1
tHDRE
Receive Data Hold After RSCLKx1
tSCLKEW
TSCLKx/RSCLKx Width
tSCLKE
TSCLKx/RSCLKx Period
Switching Characteristics
tDFSE
TFSx/RFSx Delay After TSCLKx/RSCLKx (Internally Generated TFSx/RFSx)2
tHOFSE
TFSx/RFSx Hold After TSCLKx/RSCLKx (Internally Generated TFSx/RFSx)1
tDDTE
Transmit Data Delay After TSCLKx1
tHDTE
Transmit Data Hold After TSCLKx1
1 Referenced to sample edge.
2 Referenced to drive edge.
Table 28. Serial Ports—Internal Clock
Parameter
Timing Requirements
tSFSI
TFSx/RFSx Setup Before TSCLKx/RSCLKx1
tHFSI
TFSx/RFSx Hold After TSCLKx/RSCLKx1
tSDRI
Receive Data Setup Before RSCLKx1
tHDRI
Receive Data Hold After RSCLKx1
tSCLKEW
TSCLKx/RSCLKx Width
tSCLKE
TSCLKx/RSCLKx Period
Switching Characteristics
tDFSI
tHOFSI
tDDTI
tHDTI
tSCLKIW
TFSx/RFSx Delay After TSCLKx/RSCLKx (Internally Generated TFSx/RFSx)2
TFSx/RFSx Hold After TSCLKx/RSCLKx (Internally Generated TFSx/RFSx)1
Transmit Data Delay After TSCLKx1
Transmit Data Hold After TSCLKx1
TSCLKx/RSCLKx Width
1 Referenced to sample edge.
2 Referenced to drive edge.
Table 29. Serial Ports—Enable and Three-State
Parameter
Switching Characteristics
tDTENE
tDDTTE
tDTENI
tDDTTI
Data Enable Delay from External TSCLKx1
Data Disable Delay from External TSCLKx1
Data Enable Delay from Internal TSCLKx1
Data Disable Delay from Internal TSCLKx1
1 Referenced to drive edge.
Min
Max
Unit
3.0
ns
3.0
ns
3.0
ns
3.6
ns
5.4
ns
8.0
ns
12.0
ns
0.0
ns
12.0
ns
0.0
ns
Min
Max
Unit
11.3
ns
–1.5
ns
11.3
ns
–1.5
ns
5.4
ns
18.0
ns
3.0
ns
−4.0
ns
3.0
ns
−1.8
ns
5.4
ns
Min
Max
Unit
0.0
ns
10.0
ns
–2.0
ns
3.0
ns
Rev. PrE | Page 37 of 62 | March 2009
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