HD404889_03 Datasheet, PDF (148/197 Pages) Renesas Technology Corp – Low-Voltage AS Microcomputers with On-Chip LCD Circuit

HD404889/HD404899/HD404878/HD404868 Series
Buzzer mode register (BMR: $02E)
Bit
Read/Write
Initial value on reset
Bit name
3
W
0
BMR3
2
W
0
BMR2
1
W
0
BMR1
0
W
0
BMR0
BMR2 BMR1 BMR0 _{BUZZ pin output}
Division by
0
*
2 of timer B overflow
0
Division by
1
*
2 of timer C overflow
0
0
1
1
0
1
1
φPER clock
φPER/2clock
φPER/3clock
φPER/4clock
* _{: Don't care}
Clock output control (enabled when BMR2 = 1, bit manipulation instruction)
0 Stopped (low level)
1 Output
Figure 94 Buzzer Mode Register (BMR)
Rev.6.00, Sep.08.2003, page 148 of 197