h8s-2169 Renesas Electronics Corporation., h8s-2169 Datasheet - Page 444

• Manufacturer Part Number: h8s-2169
• Description: Renesas 16-bit Single-chip Microcomputer H8s Family/h8s/2100 Series
• Manufacturer: Renesas Electronics Corporation.

Section 14 Watchdog Timer (WDT)
Bit 4
PSS
0
1
Note:
14.2.3
Only bit 3 is described here. For details on functions not related to the watchdog timer, see
sections 3.2.2 and 5.2.1, System Control Register (SYSCR), and the descriptions of the relevant
modules.
Rev. 3.00 Jan 18, 2006 page 416 of 1044
REJ09B0280-0300
Bit
Initial value
Read/Write
WDT1 input clock selection
* The overflow period is the time from when TCNT starts counting up from H'00 until
System Control Register (SYSCR)
Bit 2
CKS2
0
1
0
1
overflow occurs.
CS2E
R/W
Bit 1
CKS1
0
1
0
1
0
1
0
1
7
0
IOSE
R/W
Bit 0
CKS0
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
6
0
INTM1
R
5
0
Clock
/2 (Initial value) 51.2 µs
/64
/128
/512
/2048
/8192
/32768
/131072
SUB
SUB
SUB
SUB
SUB
SUB
SUB
SUB
/2
/4
/8
/16
/32
/64
/128
/256
INTM0
R/W
4
0
XRST
Overflow Period * (when
and
1.6 ms
3.2 ms
13.1 ms
52.4 ms
209.7 ms
838.9 ms
3.36 s
15.6 ms
31.3 ms
62.5 ms
125 ms
250 ms
500 ms
1 s
2 s
R
3
1
Description
SUB
NMIEG
= 32.768 kHz)
R/W
2
0
R/W
HIE
1
0
= 10 MHz
RAME
R/W
0
1