HD6417660 RENESAS [Renesas Technology Corp], HD6417660 Datasheet - Page 721

• Manufacturer Part Number: HD6417660
• Description: Renesas 32-Bit RISC Microcomputer
• Manufacturer: RENESAS [Renesas Technology Corp]

This LSI incorporates a user debugging interface (H-UDI) and advanced user debugger (AUD) for
a boundary scan function and emulator support.
This section summarizes the boundary scan function for the H-UDI. For details on the JTAG
function incorporated in this LSI, refer to the material separately handed, BSDL (Boundary-Scan
Description Language). For details on the emulator functions such as the AUD, refer to the user’s
manual of each emulator.
26.1
The H-UDI is a serial I/O interface that conforms to JTAG (Joint Test Action Group, IEEE
Standard 1149.1 and IEEE Standard Test Access Port and Boundary-Scan Architecture)
specifications.
The H-UDI in this LSI supports a boundary scan mode, and is also used for emulator connection.
When using an emulator, H-UDI functions should not be used. When using the boundary scan
function for the H-UDI, the ASEMD0 pin should be fixed to high level. For the method of
connecting the emulator, refer to the emulator’s user’s manual.
Figure 26.1 shows a block diagram of the H-UDI.
Features
Section 26 User Debugging Interface (H-UDI)
TRST
TDO
TMS
TCK
TDI
Figure 26.1 Block Diagram of H-UDI
TAP controller
SDBPR
MUX
Decoder
Rev. 1.00, 02/04, page 683 of 804
SDID
SDIR
Local
bus