Format Of Watch Timer Interrupt Time Selection Register - NEC PD789488 User Manual

(2) Watch timer interrupt time selection 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 watch timer.
WTIM is set with a 1-bit or 8-bit memory manipulation instruction.
RESET input sets this register to 00H.
Figure 8-3. Format of Watch Timer Interrupt Time Selection Register
Symbol 7 6
WTIM 0 0
WTS
0 0.5 s (f
XT
1 1.0 s (f
XT
Note The selection is only available when bit 7 (WTM7) of the watch timer mode control register (WTM) is 1.
Remark f : Subsystem clock oscillation frequency
XT
164
CHAPTER 8 WATCH TIMER
5 4 3
0 0 0
Selection of watch timer interrupt time
)
/2)
User's Manual U15331EJ4V1UD
2 1 <0>
0 0 WTS
Note
Address After reset R/W
FF4BH 00H R/W