IEEE 1149.1 (JTAG) Boundary-Scan Testing for Cyclone II Devices
Figure 14–5. IEEE Std. 1149.1 TAP Controller State Machine
TEST_LOGIC/
RESET
TMS = 1
TMS = 0
TMS = 0
TMS = 1
RUN_TEST/
IDLE
TMS = 1
TMS = 0
SELECT_IR_SCAN
SELECT_DR_SCAN
TMS = 1
TMS = 0
TMS = 1
TMS = 1
CAPTURE_DR
CAPTURE_IR
TMS = 0
TMS = 0
SHIFT_DR
SHIFT_IR
TMS = 0
TMS = 1
TMS = 0
TMS = 1
TMS = 1
TMS = 1
EXIT1_DR
EXIT1_IR
TMS = 0
TMS = 0
PAUSE_DR
PAUSE_IR
TMS = 0
TMS = 0
TMS = 1
TMS = 1
TMS = 0
TMS = 0
EXIT2_DR
EXIT2_IR
TMS = 1
TMS = 1
TMS = 1
TMS = 1
UPDATE_DR
UPDATE_IR
TMS = 0
TMS = 0
Altera Corporation
February 2007
14–7
Cyclone II Device Handbook, Volume 1
ALTERA [ ALTERA CORPORATION ]
