English
Language : 

HD6432345 Datasheet, PDF (409/907 Pages) Hitachi Semiconductor – H8S/2345 F-ZTAT Hardware Manual
Table 10.5 Switching of Internal Clock and TCNT Operation (cont)
Timing of Switchover
by Means of CKS1
No.
and CKS0 Bits
TCNT Clock Operation
4
Switching from high Clock before
to high
switchover
Clock after
switchover
TCNT clock
TCNT
N
N+1
N+2
CKS bit write
Notes: 1. Includes switching from low to stop, and from stop to low.
2. Includes switching from stop to high.
3. Includes switching from high to stop.
4. Generated on the assumption that the switchover is a falling edge; TCNT is
incremented.
10.6.6 Usage Note
Interrupts and Module Stop Mode: If module stop mode is entered when an interrupt has been
requested, it will not be possible to clear the CPU interrupt source or DTC activation source.
Interrupts should therefore be disabled before entering module stop mode.
393