參數(shù)資料
型號: UPD178078GF-XXX-3BA
廠商: NEC Corp.
元件分類: 8位微控制器
英文描述: 8-BIT MICROCONTROLLER
中文描述: 8位微控制器
文件頁數(shù): 26/72頁
文件大?。?/td> 366K
代理商: UPD178078GF-XXX-3BA
26
μ
PD178076, 178078, 178096, 178098
Data Sheet U12885EJ3V0DS00
3.4 Buzzer Output Control Circuit
Two types of buzzer output control circuits are provided.
BEEP0 ... 1 kHz/1.5 kHz/3 kHz/4 kHz
BUZ
... 0.77 kHz/1.54 kHz/3.08 kHz/6.15 kHz (system clock: 6.3-MHz crystal resonator)
Figure 3-7. Block Diagram of Buzzer Output Control Circuit (BEEP0)
Internal bus
BEEP
CL02
BEEP
CL01
BEEP
CL00
BEEP0 clock select
register (BEEPCL0)
BEEP0/P36
1 kHz
1.5 kHz
3 kHz
4 kHz
Selector
Output latch
(P36)
PM36
Figure 3-8. Block Diagram of Buzzer Output Control Circuit (BUZ)
Internal bus
BZOE BCS1 BCS0
Clock output
select register (CKS)
BUZ/P37
f
X
/2
10
f
X
/2
11
f
X
/2
12
f
X
/2
13
Output latch
(P37)
PM37
Selector
Remark
f
X
: System clock frequency
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