Datasheet

Section 20 Boundary Scan (JTAG)
Rev. 3.00 Sep. 28, 2009 Page 617 of 710
REJ09B0384-0300
20.4 Operation
20.4.1 TAP Controller State Transitions
Figure 20.2 shows the internal states of the TAP controller. State transitions basically conform to
the IEEE1149.1 standard.
Test-logic-reset
Capture-DR
Shift-DR
Exit1-DR
Pause-DR
Exit2-DR
Update-DR
Select-DR-scanRun-test/idle
1
0
0
0
0
11 1
11
1
0
0
0
1
0
1
1
1
0
Capture-IR
Shift-IR
Exit1-IR
Pause-IR
Exit2-IR
Update-IR
Select-IR-scan
0
0
1
0
0
1
0
1
1
10
0
Figure 20.2 TAP Controller State Transitions