HD6417144 RENESAS [Renesas Technology Corp], HD6417144 Datasheet - Page 740
HD6417144
Manufacturer Part Number
HD6417144
Description
32-Bit RISC Microcomputer SuperHTM RISC engine Family/SH7144 Series
Manufacturer
RENESAS [Renesas Technology Corp]
Datasheet
1.HD6417144.pdf
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22. User Debugging Interface (H-UDI)
22.3
The H-UDI has the following registers. For the register addresses and register states in each
operating mode, refer to section 25, List of Registers.
• Instruction register (SDIR)
• Status register (SDSR)
• Data register H (SDDRH)
• Data register L (SDDRL)
• Bypass register (SDBPR)
Instructions and data can be input to the instruction register (SDIR) and data register (SDDR) by
serial transfer from the test data input pin (TDI). Data from the status register (SDSR), and SDDR
can be output via the test data output pin (TDO). The bypass register (SDBPR) is a one-bit register
that is connected to TDI and TDO in bypass mode. Except for SDBPR, all the registers can be
accessed by the CPU.
Table 22.2 shows the kinds of serial transfer that can be used with each of the H-UDI’s registers.
Table 22.2 Serial Transfer Characteristics of H-UDI Registers
Rev.4.00 Mar. 27, 2008 Page 696 of 882
REJ09B0108-0400
Register
SDIR
SDSR
SDDRH
SDDRL
SDBPR
Register Description
Serial Input
Possible
Not possible
Possible
Possible
Possible
Serial Output
Not possible
Possible
Possible
Possible
Possible
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