SH7616 Datasheet, PDF (804/935 Pages) Renesas Technology Corp – 32-Bit RISC Microcomputer SuperH™ RISC engine Family/SH7600 Series

Section 18 User Debug Interface (H-UDI)
• SDIR and SDSR serial data input/output
In Capture-IR, SDIR and SDSR are captured into the shift register, and in Shift-IR bits 0 to 15 of SDSR and
bits 0 to 15 of SDIR are output in that order from TDO.
In Update-IR, data input from TDI is written to SDIR, but not to SDSR.
TDI
TDI
Shift register
Bit 31
Bit 15
SDIR
..
.
SDIR
Bit 16
Bit 0
Bit 15
Bit 15
SDSR
Bit 0
.
..
Bit 0
SDSR
Shift register
TDI
input
data
Bit 31
..
.
Bit 16
Bit 15
Bit 15
Bit 0
SDIR
Bit 0
SDSR
TDO
Capture-IR
TDO
Update-IR
Figure 18.6 Serial Data Input/Output (1)
Rev. 2.00 Mar 09, 2006 page 778 of 906
REJ09B0292-0200