421
WDT1 Input Clock Select
Description
Bit 4
PSS
Bit 2
CKS2
Bit 1
CKS1
Bit 0
CKS0
Clock
Overflow Period
*
(where ø = 20 MHz)
(where ø SUB = 32.768 kHz)
0
0
0
0
ø/2 (initial value)
25.6 µs
1
ø/64
819.2 µs
1
0
ø/128
1.6 ms
1
ø/512
6.6 ms
1
0
0
ø/2048
26.2 ms
1
ø/8192
104.9 ms
1
0
ø/32768
419.4 ms
1
ø/131072
1.68 s
1
0
0
0
øSUB/2
15.6 ms
1
øSUB/4
31.3 ms
1
0
øSUB/8
62.5 ms
1
øSUB/16
125 ms
1
0
0
øSUB/32
250 ms
1
øSUB/64
500 ms
1
0
øSUB/128
1 s
1
øSUB/256
2 s
Note:
*
An overflow period is the time interval between the start of counting up from H'00 on the
TCNT and the occurrence of a TCNT overflow.
Summary of Contents for H8S/2645
Page 4: ......
Page 16: ......
Page 58: ...26 ...
Page 110: ...78 ...
Page 120: ...88 ...
Page 132: ...100 ...
Page 160: ...128 ...
Page 172: ...140 ...
Page 418: ...386 ...
Page 444: ...412 ...
Page 530: ...498 ...
Page 562: ...530 ...
Page 642: ...610 ...
Page 662: ...630 ...
Page 688: ...656 ...
Page 756: ...724 ...
Page 784: ...752 ...
Page 812: ...780 ...
Page 837: ...805 A 2 Instruction Codes Table A 2 shows the instruction codes ...
Page 1152: ...1120 ...