HD6417750RF240V Datasheet, PDF (342/606 Pages) Renesas Technology Corp – Renesas 16-Bit Single-Chip Microcomputer H8S Family/H8S/2600 Series

Section 13 Watchdog Timer
Bit Bit Name Initial Value R/W Description
2
CKS2
0
1
CKS1
0
0
CKS0
0
R/W Clock Select 0 to 2
R/W Selects the clock source to be input to TCNT. The
R/W ^{overflow frequency for φ = 20 MHz is enclosed in}
parentheses.
000: Clock φ/2 (frequency: 25.6 μs)
001: Clock φ/64 (frequency: 819.2 μs)
010: Clock φ/128 (frequency: 1.6 ms)
011: Clock φ/512 (frequency: 6.6 ms)
100: Clock φ/2048 (frequency: 26.2 ms)
101: Clock φ/8192 (frequency: 104.9 ms)
110: Clock φ/32768 (frequency: 419.4 ms)
111: Clock φ/131072 (frequency: 1.68 s)
Note: * Only 0 can be written, for flag clearing.
Rev. 7.00 Sep. 11, 2009 Page 306 of 566
REJ09B0211-0700