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CHAPTER 9 WATCH TIMER
User’s Manual U15798EJ2V0UD
(2) Watch timer interrupt time select register (WTIM)
This register is used to set the interrupt time by selecting either the source clock or the clock divided by 2 for
the subsystem clock to be input to the watch timer.
WTIM is set by a 1-bit or 8-bit memory manipulation instruction.
RESET input sets this register to 00H.
Figure 9-3. Format of Watch Timer Interrupt Time Select Register (WTIM)
Symbol
7
6
5
4
3
2
1
0
Address
After reset
R/W
WTIM
0
0
0
0
0
0
0
WTS
FF79H
00H
R/W
WTS
Selection of watch timer interrupt time
Note
0
0.5 s (f
XT
)
1
1.0 s (f
XT
/2)
Note
The selection is only available when bit 7 (WTNM07) of watch timer operation mode register 0 (WTNM0)
is 1.
Remark
f
XT
: Subsystem clock oscillation frequency
Содержание mPD780344 Series
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