H8S2114R Datasheet, PDF (896/1038 Pages) Renesas Technology Corp – Renesas 16-Bit Single-Chip Microcomputer H8S Family / H8S/2100 Series

Section 22 Boundary Scan (JTAG)
SDIR serial data input/output
SDIR is captured into the shift register in Capture-IR, and bits 0 to 31 of SDIR are output in that order
from the ETDO pin in Shift-IR.
Data input from the ETDI pin is written to SDIR in Update-IR.
ETDI
Bit 31
.
.
.
.
.
.
.
.
.
.
Bit 0 ^.
Bit 31
SDIR
Bit 0
ETDI
Bit 31
Bit 31
.
Bit 28
.
.
Bit 28
SDIR
ETDO
Capture-IR
ETDO
Figure 22.4 Serial Data Input/Output (1)
Update-IR
SDIDR serial data input/output
SDIDR is captured into the shift register in Capture-DR in IDCODE mode, and bits 0
to 31 of SDIDR are output in that order from the ETDO pin in Shift-DR.
Data input from the ETDI pin is not written to any register in Update-DR.
ETDI
Bit 31
Bit 31
.
.
.
SDIDR
.
Bit 0
Bit 0
ETDO
Capture-DR
Figure 22.5 Serial Data Input/Output (2)
Rev. 3.00 Jul. 14, 2005 Page 848 of 986
REJ09B0098-0300