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4
HCS (input)
HAS (input)
HSTROBE
(A)
(input)
HR/W (input)
HRDY
(B)
(output)
HD[31:0] (input)
HCNTL[1:0]
(input)
37
TMS320C6454
Fixed-PointDigitalSignalProcessor
SPRS311A–APRIL2006–REVISEDDECEMBER2006
A.HSTROBEreferstothefollowinglogicaloperationonHCS,HDS1,andHDS2:[NOT(HDS1XORHDS2)]ORHCS.
B.Dependingonthetypeofwriteorreadoperation(HPIDwithoutauto-incrementing;HPIA,HPIC,orHPIDwith
auto-incrementing)andthestateoftheFIFO,transitionsonHRDYmayormaynotoccur.Formoredetailed
informationontheHPIperipheral,seetheTMS320C645xDSPHostPortInterface(HPI)User'sGuide(literature
numberSPRU969).
Figure7-50.HPI32WriteTiming(HASNotUsed,TiedHigh)
SubmitDocumentationFeedbackC64x+PeripheralInformationandElectricalSpecifications175