CHAPTER 26 OPTION BYTE
Page 799 of 920
26.2
Format of User Option Byte
The format of user option byte is shown below.
Figure 26 - 1 Format of User Option Byte (000C0H/010C0H)
Note 1.
Set the same value as 000C0H to 010C0H when the boot swap operation is used because 000C0H is
replaced by 010C0H.
Note 2.
The window open period is 100% when WDSTBYON = 0, regardless the value of the WINDOW1 and
WINDOW0 bits.
Address: 000C0H/010C0H
7
6
5
4
3
2
1
0
WDTINT
WINDOW1
WINDOW0
WDTON
WDCS2
WDCS1
WDCS0
WDSTBYON
Use of interval interrupt of watchdog timer
0
Interval interrupt is not used.
1
Interval interrupt is generated when 75% + 1/2 f
IL
of the overflow time is reached.
Watchdog timer window open period
0
0
Setting prohibited
0
1
50%
1
0
75%
1
1
100%
Operation control of watchdog timer counter
0
Counter operation disabled (counting stopped after reset)
1
Counter operation enabled (counting started after reset)
Watchdog timer overflow time
(f
IL
= 17.25 kHz (MAX.))
0
0
0
2
6
/f
IL
(3.71 ms)
0
0
1
2
7
/f
IL
(7.42 ms)
0
1
0
2
8
/f
IL
(14.84 ms)
0
1
1
2
9
/f
IL
(29.68 ms)
1
0
0
2
11
/f
IL
(118.72 ms)
1
0
1
2
13
/f
IL
(474.90 ms)
1
1
0
2
14
/f
IL
(949.80 ms)
1
1
1
2
16
/f
IL
(3799.19 ms)
Operation control of watchdog timer counter (HALT/STOP mode)
0
Counter operation stopped in HALT/STOP mode
1
Counter operation enabled in HALT/STOP mode
Summary of Contents for RL78/G1H
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