h8s-2635 Renesas Electronics Corporation., h8s-2635 Datasheet - Page 484

• Manufacturer Part Number: h8s-2635
• Description: Renesas 16-bit Single-chip Microcomputer H8s Family/h8s/2600 Series
• Manufacturer: Renesas Electronics Corporation.

Section 12 Watchdog Timer
WDT0 Input Clock Select
Notes: 1. An overflow period is the time interval between the start of counting up from H'00 on the
Rev. 6.00 Feb 22, 2005 page 424 of 1484
REJ09B0103-0600
Bit 2
CKS2
0
1
2. In the U-mask and W-mask versions, and H8S/2635 Group,
Bit 1
CKS1
0
1
0
1
TCNT and the occurrence of a TCNT overflow.
subsleep modes operates as SUB.
Bit 0
CKS0
0
1
0
1
0
1
0
1
Description
Clock
/2 *
/64 *
/128 *
/512 *
/2048 *
/8192 *
/32768 *
/131072 *
2
2
(initial value) 25.6 µs
2
2
2
2
2
2
Overflow Period *
819.2 µs
1.6 ms
6.6 ms
26.2 ms
104.9 ms
419.4 ms
1.68 s
1
(where
in subactive and
= 20 MHz)