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Chapter 10 Buzzer
Control Register
DLYS1DLYS2 DLYS0
Oscillation stabilization
wait period selection
01
24
567
3
(At reset : 0 0 0 0 0 0 0 - )
DLYCTR
-DLYS0
DLYS1DLYS2BUZS0
BUZS1
BUZS2
0
BUZS1
0
0
1
1
1
BUZS0
0
1
0
1
0
1
0
1
fosc/2
13
fosc/2
12
fosc/2
11
Buzzer output frequency
selection
fosc/2
14
fx/2
3
fosc/2
10
fosc/2
9
fx/2
4
Note : After reset is released, the oscillation stabilization
wait period is fixed at 2
14
/ fs.
BUZOEBUZS2
0
0
0
1
1
1
0
1
0
1
0
1
0
1
fs/2
12
fs/2
10
fs/2
8
fs/2
14
Reserved
fs/2
6
fs/2
4
fs/2
2
BUZOE
0
1
Buzzer output
P06 output selection
Port data output
10-2 Control Register
Oscillation Stabilization Wait Timer Control Register
Figure 10-2-1 Oscillation Stabilization Wait Time Control Register
(DLYCTR : x'03F4D', R/W)