SH7144_08 Datasheet, PDF (747/930 Pages) Renesas Technology Corp – 32-Bit RISC Microcomputer SuperHTM RISC engine Family/SH7144 Series

22. User Debugging Interface (H-UDI)
22.4.2 Bypass Mode
Bypass mode can be used to bypass this LSI in a boundary-scan test. Bypass mode is entered by
transferring B'1111 to SDIR. In bypass mode, SDBPR is connected to TDI and TDO.
22.4.3 H-UDI Reset
The H-UDI can be reset as follows.
• By holding the TRST signal at 0
• When TRST = 1, by inputting at least five TCK clock cycles while TMS = 1
Rev.4.00 Mar. 27, 2008 Page 703 of 882
REJ09B0108-0400