HD6417618 RENESAS [Renesas Technology Corp], HD6417618 Datasheet - Page 536

• Manufacturer Part Number: HD6417618
• Description: 32-Bit RISC Microcomputer SuperHTM RISC engine Family / SH7618 Series
• Manufacturer: RENESAS [Renesas Technology Corp]

Section 19 User Debugging Interface (H-UDI)
19.4
19.4.1
Figure 19.2 shows the internal states of the TAP controller. State transitions basically conform to
the JTAG standard.
Note: The transition condition is the TMS value at the rising edge of the TCK signal. The TDI
Rev. 6.00 Jun. 12, 2007 Page 504 of 610
REJ09B0131-0600
value is sampled at the rising edge of the TCK signal and is shifted at the falling edge of
the TCK signal. For details on change timing of the TDO value, see section 19.4.3, TDO
Output Timing. The TDO pin is high impedance, except in the shift-DR and shift-IR
states. A transition to the Test-Logic-Reset state is made asynchronously with TCK by
driving the TRST signal 0.
Operation
TAP Controller
1
0
Test-logic-reset
Run-test/idle
0
Figure 19.2 TAP Controller State Transitions
1
1
0
Select-DR-scan
Capture-DR
Update-DR
Pause-DR
1
Exit1-DR
Exit2-DR
Shift-DR
0
0
1
0
1
1
0
1
0
0
1
1
0
Select-IR-scan
Capture-IR
Update-IR
1
Pause-IR
Exit1-IR
Exit2-IR
0
0
Shift-IR
1
0
1
1
0
1
0
0
1