SH7720 Datasheet, PDF (1298/1524 Pages) Renesas Technology Corp – Renesas 32-Bit RISC Microcomputer SuperHTM RISC engine Family / SH7700 Series

Section 36 User Debugging Interface (H-UDI)
36.6 Usage Notes
1. An H-UDI command, once set, will not be modified as long as another command is not re-
issued from the H-UDI. If the same command is given continuously, the command must be set
after a command (BYPASS, etc.) that does not affect chip operations is once set.
2. Because chip operations are suspended in standby mode, H-UDI commands are not accepted.
To keep the TAP state constant before and after standby mode, TCK must be high during
standby mode transition.
3. The H-UDI is used for emulator connection. Therefore, H-UDI functions cannot be used when
using an emulator.
36.7 Advanced User Debugger (AUD)
The AUD is a function only for an emulator. For details on the AUD, refer to each emulator's
User's Manual.
Rev. 3.00 Jan. 18, 2008 Page 1236 of 1458
REJ09B0033-0300