PXS20RM Datasheet, PDF (1139/1368 Pages) Freescale Semiconductor, Inc – PXS20 Microcontroller

Nexus Port Controller (NPC)
TEST LOGIC
RESET
1
0
1
RUN-TEST/IDLE
0
1
SELECT-DR-SCAN
0
1
CAPTURE-DR
0
1
SELECT-IR-SCAN
0
1
CAPTURE-IR
0
SHIFT-DR
0
1
1
EXIT1-DR
0
SHIFT-IR
0
1
1
EXIT1-IR
0
PAUSE-DR
0
1
0
EXIT2-DR
1
UPDATE-DR
1
0
PAUSE-IR
0
1
0
EXIT2-IR
1
UPDATE-IR
1
0
NOTE: The value shown adjacent to each state transition in this figure represents the value of TMS
at the time of a rising edge of TCK.
Figure 34-9. IEEE 1149.1-2001 TAP Controller State Machine
Freescale Semiconductor
PXS20 Microcontroller Reference Manual, Rev. 1
34-15