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Bit(n-1) (n-2) (n-3)
Bit 0 Bit(n-1) (n-2) (n-3)
14
12
11
10
9
3
3
2
8
7
6
5
4
4
3
1
3
2
CLKS
CLKR
FSR (int)
FSR (ext)
DR
CLKX
FSX (int)
FSX (ext)
FSX (XDATDLY=00b)
DX
13
(A)
13
(A)
2
1
CLKS
FSR external
CLKR/X (no need to resync)
CLKR/X (needs resync)
TMS320C6454
Fixed-PointDigitalSignalProcessor
SPRS311A–APRIL2006–REVISEDDECEMBER2006
A.ParameterNo.13appliestothefirstdatabitonlywhenXDATDLY≠0.
B.TheCLKSsignalissharedbybothMcBSP0andMcBSP1onthisdevice.
Figure7-52.McBSPTiming
(B)
Table7-61.TimingRequirementsforFSRWhenGSYNC=1(seeFigure7-53)
-720
-850
NO.UNIT
-1000
MINMAX
1t
su(FRH-CKSH)
Setuptime,FSRhighbeforeCLKShigh4ns
2t
h(CKSH-FRH)
Holdtime,FSRhighafterCLKShigh4ns
Figure7-53.FSRTimingWhenGSYNC=1
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