Cypress CY7C1177V18 manual TAP Controller State Diagram, Shows the tap controller state diagram

CY7C1166V18, CY7C1177V18

CY7C1168V18, CY7C1170V18

TAP Controller State Diagram

Figure 2 shows the tap controller state diagram. [9]

Figure 2. Tap Controller State Diagram

1

0

TEST-LOGIC RESET

0

TEST-LOGIC/ IDLE

1	SELECT		1	SELECT		1
	DR-SCAN			IR-SCAN
	0			0
	1			1
	CAPTURE-DR			CAPTURE-IR
	0			0
	SHIFT-DR		0	SHIFT-IR		0
	1			1
	EXIT1-DR		1	EXIT1-IR		1
	0			0
	PAUSE-DR		0	PAUSE-IR		0
	1			1
	0			0
	EXIT2-DR			EXIT2-IR
	1			1
	UPDATE-DR			UPDATE-IR
	1	0		1	0

Note

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

Document Number: 001-06620 Rev. *D Page 14 of 27

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