A96G140/A96G148/A96A148 User’s manual
13. Buzzer driver
151
Table 27. Buzzer Driver Register Map
Name
Address
Direction
Default
Description
BUZDR
8FH
R/W
FFH
Buzzer Data Register
BUZCR
97H
R/W
00H
Buzzer Control Register
13.3
Register description
BUZDR (Buzzer Data Register): 8FH
7
6
5
4
3
2
1
0
BUZDR7
BUZDR6
BUZDR5
BUZDR4
BUZDR3
BUZDR2
BUZDR1
BUZDR0
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Initial value: FFH
BUZDR[7:0]
This bits control the Buzzer frequency
Its resolution is 00H ~ FFH
BUZCR (Buzzer Control Register): 97H
7
6
5
4
3
2
1
0
–
–
–
–
–
BUCK1
BUCK0
BUZEN
–
–
–
–
–
R/W
R/W
R/W
Initial value: 00H
BUCK[1:0]
Buzzer Driver Source Clock Selection
BUCK1
BUCK0
Description
0
0
fx/32
0
1
fx/64
1
0
fx/128
1
1
fx/256
BUZEN
Buzzer Driver Operation Control
0
Buzzer Driver disable
1
Buzzer Driver enable
NOTE:
fx: System clock oscillation frequency.