Renesas SH7641 - Manual (Page 517)

Section 15 User Debugging Interface (H-UDI)
Rev. 4.00 Sep. 14, 2005 Page 467 of 982
REJ09B0023-0400
15.3.4 ID Register (SDID)
The ID register (SDID) is a 32-bit read-only register in which SDIDH and SDIDL are connected.
Each register is a 16-bit that can be read by CPU.
The IDCODE command is set from the H-UDI pin. This register can be read from the TDO when
the TAP state is Shift-DR. Writing is disabled.
Bit Bit Name
Initial
Value R/W
Description
31 to 0 DID31 to DID0 H'0027200F R Device ID
Device ID register that is stipulated by JTAG.
H'0027200F is initial value specific to the LSI. Upper
four bits may be changed by the chip version.
SDIDH corresponds to bits 31 to 16.
SDIDL corresponds to bits 15 to 0.