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STV82X6 数据表(PDF) 79 Page - STMicroelectronics |
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STV82X6 数据表(HTML) 79 Page - STMicroelectronics |
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79 / 95 page ![]() 79/95 STV82x6 Register List BEEPER_TONE Beeper Tone Control Address (hex): 7Ah Type: R/W Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 BEEP_FREQ[2:0] BEEP_VOL[4:0] Bit Name Reset Function BEEP_FREQ[2:0] 011 Defines the frequency of the beeper tone from 62.5 Hz to 8 kHz in octaves 000: 62.5 Hz 100: 1 kHz 001: 125 Hz 101: 2 kHz 010: 250 Hz 110: 4 kHz 011: 500 Hz (Default) 111: 8 kHz BEEP_VOL[4:0] 10000 Defines the Beeper volume from 0 to -93 dB in steps of 3 dB. 11111: 0 dB (1 VRMS)... 11110: -3 dB 00011: -84 dB 11101: -6 dB 00010: -87 dB ... 00001: -90 dB 10000: -48 dB (Default) 00000: -93 dB |
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