HD6413007F20 Datasheet, PDF (376/798 Pages) Renesas Technology Corp – Hardware Manual Renesas 16-Bit Single-Chip Microcomputer H8 Family/H8/300H Series

9. 16-Bit Timer
Note on Writes in Synchronized Operation: When channels are synchronized, if a 16TCNT
value is modified by byte write access, all 16 bits of all synchronized counters assume the same
value as the counter that was addressed.
(Example) When channels 1 and 2 are synchronized
• Byte write to channel 1 or byte write to channel 2
16TCNT1 W
X
Write A to upper byte
of channel 1
16TCNT1 A
X
16TCNT2 Y
Z
Upper byte Lower byte
Write A to lower byte
of channel 2
16TCNT2 A
X
Upper byte Lower byte
16TCNT1 Y
A
16TCNT2 Y
A
Upper byte Lower byte
• Word write to channel 1 or word write to channel 2
16TCNT1 W
X
16TCNT2 Y
Z
Upper byte Lower byte
Write AB word to
channel 1 or 2
16TCNT1 A
B
16TCNT2 A
B
Upper byte Lower byte
Rev.5.00 Sep. 12, 2007 Page 346 of 764
REJ09B0396-0500