h8s-2161b Renesas Electronics Corporation., h8s-2161b Datasheet - Page 403

• Manufacturer Part Number: h8s-2161b
• Description: Renesas 16-bit Single-chip Microcomputer H8s Family/h8s/2100 Series
• Manufacturer: Renesas Electronics Corporation.

Notes: 1. Only 0 can be written, to clear the flag.
Bit
2
1
0
Bit Name Initial Value R/W
CKS2
CKS1
CKS0
2. When OVF is polled with the interval timer interrupt disabled, OVF = 1 must be read at
least twice.
0
0
0
R/W
R/W
R/W
Description
Clock Select 2 to 0
Selects the clock source to be input to. The overflow
frequency for
000: /2 (frequency: 51.2 s)
001: /64 (frequency: 1.64 ms)
010: /128 (frequency: 3.28 ms)
011: /512 (frequency: 13.1 ms)
100: /2048 (frequency: 52.4 ms)
101: /8192 (frequency: 209.7 ms)
110: /32768 (frequency: 0.84 s)
111: /131072 (frequency: 3.36 s)
= 10 MHz is enclosed in parentheses.
Rev. 3.00 Mar 21, 2006 page 349 of 788
Section 14 Watchdog Timer (WDT)
REJ09B0300-0300