[AK4634]
■ BEEP signal output from Speaker-Amp
Example:default
(1) Addr:00H, Data:50H
(1)
(6)
(2) Addr:20-24H, Data:00H
PMSPK bit
(Addr:00H, D4)
(2)
(3) Addr:02H, Data:80H
(4) Addr:24H, Data:80H
BEEP Gen bits
(Addr:20-24H)
XXH
XXH
(3)
(5)
SPOUTE bit
(Addr:00H, D4)
BEEP Signal Output
(4)
(4)
BPOUT bit
(Addr:24H, D7)
Addr:24H, Data:00H (Auto)
(5) Addr:02H, Data:00H
(6) Addr:00H, Data:40H
Figure 66. “BEPP Generator Æ Speaker-Amp” Output Sequence
<Example>
At first, clocks should be supplied according to “Clock Set Up” sequence.
(1) Power Up BEEP-Generator and Speaker-Amp: PMSPK bit = “0” → “1”
(2) Set up BEEP Generator (Addr: 20H ~ 24H)(When repeat output time BPCNT bit = “0”)
(3) Enable SPK-Amp Output: SPOUTE bit = “0” → “1”
(4) BEEP Output: BPOUT bit= “0” → “1” (after outputting data particular set times, BPOUT bit automatically
goes to “0”)
(5) Disable Speaker Output: SPOUTE bit bit = “1” → “0”
(6) Power down of the SPK-Amp: PMSPK bit = “1” → “0”
MS0983-E-00
2008/07
- 83 -
AKM [ ASAHI KASEI MICROSYSTEMS ]
