HD64F3642AHV Datasheet, PDF (259/551 Pages) Renesas Technology Corp – Old Company Name in Catalogs and Other Documents

Clock Levels Before
and After Modifying
No. Bits CKS1 and CKS0
3 Goes from high level
to low level^*3
TCNTV Operation
Clock before
switching
Section 9 Timers
Clock after
switching
*4
Count clock
4 Goes from high
to high
TCNTV
N
Clock before
switching
N+1
N+2
Write to CKS1 and CKS0
Clock after
switching
Count clock
TCNTV
N
N+1
N+2
Write to CKS1 and CKS0
Notes: 1. Including a transition from the low level to the stopped state, or from the stopped state
to the low level.
2. Including a transition from the stopped state to the high level.
3. Including a transition from the high level to the stopped state.
4. The switchover is seen as a falling edge, and TCNTV is incremented.
Rev. 6.00 Sep 12, 2006 page 237 of 526
REJ09B0326-0600