HD64F36024FX Datasheet, PDF (192/386 Pages) Renesas Technology Corp – Old Company Name in Catalogs and Other Documents

Section 11 Timer W
TCNT write cycle
T1 T2
φ
Address
TCNT address
Write signal
Counter clear
signal
TCNT
N
H'0000
Figure 11.24 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 11.25 Internal Clock Switching and TCNT Operation
Rev. 4.00 Sep. 23, 2005 Page 164 of 354
REJ09B0025-0400