HD64F3642AHV Datasheet, PDF (291/551 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
FRC Operation
Clock before
switching
Section 9 Timers
Clock after
switching
*
Count clock
FRC
N
4 Goes from high to high
Clock before
switching
N+1
N+2
Write to CKS1 and CKS0
Clock after
switching
Count clock
FRC
N
N+1
N+2
Write to CKS1 and CKS0
Note: * The switchover is seen as a falling edge, and FRC is incremented.
Rev. 6.00 Sep 12, 2006 page 269 of 526
REJ09B0326-0600