MC81F4204
112 April 24, 2012 Ver.1.41
19.1 Registers
BUZR
BUZZER DRIVER REGISTER 00E5H
7 6 5 4 3 2 1 0
BUZR
BUCK BUSS BURL – – – –
Reset value: C-H
R/W R/W R/W R/W – – – –
00: Not available
01: fxx/16
10: fxx/32
BUCK
Buzzer Clock Selection Bit
11: fxx/64
0: Disable Buzzer
BUSS
Buzzer Start/Stop Bit
1: Enable Buzzer
0: No effect
BURL
Buzzer Data Reload Bit
1: Reload buzzer data to buffer
–
bit3 – bit1 Not used for MC81F4204
BUPDR
BUZZER PERIOD DATA REGISTER 00E6H
7 6 5 4 3 2 1 0
BUPDR
One byte register Reset value: FFH
R/W R/W R/W R/W R/W R/W R/W R/W
A 8-bit data register for the buzzer period value.
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