HD64F2168 Datasheet, PDF (754/874 Pages) Renesas Technology Corp – Renesas 16-Bit Single-Chip Microcomputer

21.4 Operation
21.4.1 TAP Controller State Transitions
Figure 21.2 shows the internal states of the TAP controller. State transitions basically conform to
the IEEE1149.1 standard.
1 Test-logic-reset
0
1
0 Run-test/idle
1
Select-DR-scan
0
1
Capture-DR
0
Shift-DR 0
1
1
Exit1-DR
0
Pause-DR 0
1
0
Exit2-DR
1
Update-DR
10
1
Select-IR-scan
0
1
Capture-IR
0
Shift-IR 0
1
1
Exit1-IR
0
Pause-IR 0
1
0
Exit2-IR
1
Update-IR
1
0
Figure 21.2 TAP Controller State Transitions
Rev. 3.00, 03/04, page 714 of 830