Figure 13.2 Writing To Tcnt, Tcsr, And Rstcsr (Example For Wdt0) - Renesas H8S Series Hardware Manual

Section 13 Watchdog Timer

Figure 13.2 Writing to TCNT, TCSR, and RSTCSR (Example for WDT0)

Reading TCNT, TCSR, and RSTCSR (WDT0)
These registers are read in the same way as other registers. The read addresses are H'FF74 for
TCSR, H'FF75 for TCNT, and H'FF77 for RSTCSR.
Rev. 6.00 Mar 15, 2006 page 310 of 570
REJ09B0211-0600
TCNT write
Writing to RSTE and RSTS bits
15
Address:
H'FF74
H'FF76
TCSR write
Writing 0 to WOVF bit
15
Address:
H'FF74
H'FF76
8 7
H'5A Write data
8 7
H'A5 Write data or H'00
0
0