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4-9-4 Timer Control Registers
(1) Watchdog timer control register (WDCTR)
Figure 4-9-17 Watchdog Timer Control Register (WDCTR: X'03F02', R/W)
(2) Oscillation stabilization wait control register (DLYCTR)
Figure 4-9-18 Oscillation Stabilization Wait Counter Control Register
(DLYCTR: X'03F03', R/W)
Chapter 4 Timer Functions
89
Timer Function Control Registers
BUZCK1
0
1
0
0
1
1
Buzzer output
frequency selection
BUZCK0
01245673
–––
DLYCTR
DLYS0DLYS1
BUZOE
DLYS1
0
1
0
0
1
1/2
14
of the system clock (fs)
1/2
10
of the system clock (fs)
1/2
6
of the system clock (fs)
1/2
12
of the system clock (fs)
1/2
11
of the system clock (fs)
1/2
10
of the system clock (fs)
1/2
9
of the system clock (fs)
Oscillation stabilization
wait period setting
DLYS0
11
Disable use
BUZOE
0
1
P06 port output
P06 buzzer output
P06 output selection
BUZCK1 BUZCK0
(at reset: 0XX---00)
∗After reset is released, the oscillation
stabilization wait period is fixed at 1/2
15
.
01245673
–––––––
WDCTR
WDEN
Watchdog timer enable
0
1
Clear watchdog timer/disable operation
Enable WDT timer
WDEN
(at reset: -------0)