Cypress CY7C1250V18 Manuel d'utilisateur télécharger pdf (Page 14)

CY7C1246V18, CY7C1257V18

CY7C1248V18, CY7C1250V18

Document Number: 001-06348 Rev. *D Page 14 of 27

TAP Controller State Diagram

The state diagram for the TAP controller follows.

[9]

TEST-LOGIC

RESET

TEST-LOGIC/

IDLE

SELECT

DR-SCAN

CAPTURE-DR

SHIFT-DR

EXIT1-DR

PAUSE-DR

EXIT2-DR

UPDATE-DR

SELECT

IR-SCAN

CAPTURE-IR

SHIFT-IR

EXIT1-IR

PAUSE-IR

EXIT2-IR

UPDATE-IR

Note

9. The 0/1 next to each state represents the value at TMS at the rising edge of TCK.

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Cypress CY7C1250V18 Manuel d'utilisateur Page 14