HD64336900G Datasheet, PDF (207/408 Pages) Renesas Technology Corp – 16-Bit Single-Chip Microcomputer H8 Family/H8/300H Tiny Series

TCNT write cycle
T1 T2
Address
TCNT address
Write signal
Counter clear
signal
TCNT
N
H'0000
Figure 12.24 Contention between TCNT Write and Clear
Clock before switching
Clock after switching
Count clock
TCNT
N
N+1
N+2
N+3
The change in signal level at clock switching is
assumed to be a rising edge, and TCNT
increments the count.
Figure 12.25 Internal Clock Switching and TCNT Operation
Rev. 1.00, 11/03, page 179 of 376