hd64338023s Renesas Electronics Corporation., hd64338023s Datasheet - Page 350
hd64338023s
Manufacturer Part Number
hd64338023s
Description
Renesas 8-bit Single-chip Microcomputer Super Low Power Series
Manufacturer
Renesas Electronics Corporation.
Datasheet
1.HD64338023S.pdf
(697 pages)
- Current page: 350 of 697
- Download datasheet (6Mb)
Section 9 Timers
Port Mode Register 2 (PMR2)
PMR2 is an 8-bit read/write register, mainly controlling the selection of pin functions for port 2.
Only the bit relating to the watchdog timer is described here. For details of the other bits, see
section 8, I/O Ports.
Bit 2—Watchdog Timer Source Clock Select (WDCKS)
This bit selects the watchdog timer source clock. Note that stabilization times for the H8/38024,
H8/38024S, and H8/38024R Group and for the H8/38124 Group are different.
• H8/38024, H8/38024S, H8/38024R Group
WDCKS
0
1
• H8/38124 Group
WDCKS
0
1
Rev. 7.00 Mar 10, 2005 page 308 of 652
REJ09B0042-0700
Bit
Initial value
Read/Write
Description
φ/8192 selected
φw/32 selected
Description
Selects clock based on timer mode register W (TMW) setting
φw/32 selected
—
—
7
1
—
—
6
1
POF1
R/W
5
0
—
—
4
1
—
—
3
1
WDCKS
R/W
2
0
NCS
R/W
1
0
(initial value)
(initial value)
IRQ0
R/W
0
0
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