Cypress CY7C1316BV18, CY7C1318BV18, CY7C1320BV18, CY7C1916BV18 TAP Controller State Diagram

CY7C1316BV18, CY7C1916BV18
CY7C1318BV18, CY7C1320BV18
Document Number: 38-05621 Rev. *D Page 14 of 31
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
1
0
1
1
0
1
0
1
0
0
0
1
1
1
0
10 10
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
9. The 0/1 next to each state represents the value at TMS at the rising edge of TCK.
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