[AK4634]
Addr Register Name
D7
BPON7
R/W
0
D6
BPON6
R/W
0
D5
BPON5
R/W
0
D4
BPON4
R/W
0
D3
BPON3
R/W
0
D2
BPON2
R/W
0
D1
BPON1
R/W
0
D0
BPON0
R/W
0
21H
BEEP ON Time
R/W
Default
BPON7-0: Setting ON-time of BEEP signal output (Table 41)
Default: “00H”
Addr Register Name
D7
BPOFF7
R/W
D6
D5
D4
D3
D2
D1
D0
22H
BEEP OFF Time
R/W
BPOFF6 BPOFF5 BPOFF4 BPOFF3 BPOFF2 BPOFF1 BPOFF0
R/W
0
R/W
0
R/W
0
R/W
0
R/W
0
R/W
0
R/W
0
Default
0
BPOFF7-0: Setting OFF-time of BEEP signal output (Table 42)
Default: “00H”
Addr Register Name
23H BEEP Repeat Count
D7
0
R
0
D6
BPTM6
R/W
0
D5
D4
D3
D2
D1
D0
BPTM5 BPTM4 BPTM3 BPTM2 BPTM1 BPTM0
R/W
0
R/W
Default
R/W
0
R/W
0
R/W
0
R/W
0
R/W
0
BPTM6-0: Setting the number of times that BEEP signal repeats (Table 43)
Default: “00H”
Addr Register Name
24H BEEP VOL/Control
D7
BPOUT
R/W
0
D6
0
R
0
D5
0
R
0
D4
0
R
0
D3
0
R
0
D2
D1
BPLVL1
R/W
D0
BPLVL0
R/W
BPLVL2
R/W
0
R/W
Default
0
0
BPLVL2-0: Setting Output Level of BEEP signal (Table 44)
Default: “0H” (0dB)
BPOUT: BEEP Signal Control
0: OFF (default)
1: ON
At the time of BPCNT = “0”, when BPOUT bit is “1”, the beep signal starts outputting. The Beep signal stops
after the number of times that was set in BPTM6-0 bit, and BPOUT bit is set to “0” automatically.
Rev. 0.5
2007/10
- 70 -
AKM [ ASAHI KASEI MICROSYSTEMS ]
