Cypress Semiconductor CY7C1354CV25 Manuale Utente Scaricare il pdf (Pagina 15)

CY7C1354CV25

CY7C1356CV25

Document Number: 38-05537 Rev. *M Page 15 of 33

TAP Controller Block Diagram

TAP Timing

Bypass Register

0

Instruction Register

012

Identification Register

012293031 ...

Boundary Scan Register

012..x ...

Selection

Circuitr

y

Selection

Circuitry

TCK

TMS

TAP CONTROLLER

TDI TDO

t

TL

Test Clock

(TCK)

123456

Test Mode Select

(TMS)

t

TH

Test Data-Out

(TDO)

t

CYC

Test Data-In

(TDI)

t

TMSH

t

TMSS

t

TDIH

t

TDIS

t

TDOX

t

TDOV

DON’T CARE UNDEFINED

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CY7C1354CV25 1
CY7C1356CV25 1

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