參數(shù)資料
型號(hào): M44C510-P40
廠商: ATMEL CORP
元件分類: 微控制器/微處理器
英文描述: 4-BIT, MROM, MICROCONTROLLER, PDIP40
封裝: DIP-40
文件頁數(shù): 39/57頁
文件大?。?/td> 1105K
代理商: M44C510-P40
M44C510
TELEFUNKEN Semiconductors
Rev. A2, 13-Jan-98
44 (57)
BUZ
NBUZ
BUZ
NBUZ
BUZZER Off
BZOP=1
BZOP=0
96 11551
Figure 41. Buzzer waveform
Buzzer Control Register (BZCR)
Subport address (indirect write access): ’A’hex
Bit 3
Bit 2
Bit 1
Bit 0
BZCR
BZFS2
BZFS1
BZOP
BZOF
Reset value: 1111b
BZFS2, BZFS2
– Buzzer Frequency Select code
BZOP
– Buzzer Output Stop State
BZOF
– Buzzer off/on
Table 21.Buzzer Control Register (BZCR)
Code
3 2 1 0
Function
x x x 0
Buzzer on
x x x 1
Buzzer off
x x 0 x
Buzzer output stop state: BP42 = BP43 = low
x x 1 x
Buzzer output stop state: BP42 = BP43 = high
0 0 x x
Buzzer frequency: 32 kHz (= SUBCL)
0 1 x x
Buzzer frequency: 8 kHz (= SUBCL / 4)
1 0 x x
Buzzer frequency: 4 kHz (= SUBCL / 8)
1 1 x x
Buzzer frequency: 2 kHz (= SUBCL / 16)
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