HD64F38602R Datasheet, PDF (215/552 Pages) Renesas Technology Corp – Renesas 16-Bit Single-Chip Microcomputer

Section 10 Timer W
TCNT write cycle
T1
T2
φ
Address
TCNT address
Write signal
Counter clear
signal
TCNT
N
H'0000
Figure 10.24 Contention between TCNT Write and Clear
Previous clock
New clock
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 10.25 Internal Clock Switching and TCNT Operation
Rev. 3.00 May 15, 2007 Page 183 of 518
REJ09B0152-0300