Cypress CY7C1577V18 Manual De Usuario
CY7C1566V18, CY7C1577V18
CY7C1568V18, CY7C1570V18
CY7C1568V18, CY7C1570V18
Document Number: 001-06551 Rev. *E
Page 14 of 28
TAP Controller State Diagram
The state diagram for the TAP controller follows.
TEST-LOGIC
RESET
TEST-LOGIC/
IDLE
SELECT
DR-SCAN
CAPTURE-DR
SHIFT-DR
EXIT1-DR
PAUSE-DR
EXIT2-DR
UPDATE-DR
1
0
1
1
0
1
0
1
0
0
0
1
1
1
0
1
0
1
0
0
0
1
0
1
1
0
1
0
0
1
1
0
SELECT
IR-SCAN
CAPTURE-IR
SHIFT-IR
EXIT1-IR
PAUSE-IR
EXIT2-IR
UPDATE-IR
Note
10. The 0/1 next to each state represents the value at TMS at the rising edge of TCK.