Buzzer Output / Buzzer Output Pin Control Register - Panasonic MN101L Series User Manual

Chapter 7
I/O Port
7.2.14

Buzzer output / Buzzer output pin control Register

Buzzer output / Buzzer output pin control register selects the pin function (General IO (GIO) or Buzzer output)
and selects the output pin of BUZ/NBUZ (BUZA or BUZB / NBUZA or NBUZB)
Buzzer output / Buzzer output pin control Register (BUZCNT: 0x03F5F)
bp
Bit name
At reset
Access
bp
7-4
3
2
1
0
VII - 32 Control Registers
7 6
- -
0 0
R R
Bit name
- Always read as 0.
Select the pin function (GIO or NBUZ output).
NBUZEN 0: GIO
1: NBUZ output (NBUZA / NBUZB)
Select the pin function (GIO or BUZ output).
BUZEN 0: GIO
1: BUZ output (BUZA / BUZB)
Select the output pin of NBUZ output function.
NBUZSEL 0: NBUZA (P34)
1: NBUZB (P03)
Select the output pin of BUZ output function.
BUZSEL 0: BUZA (P33)
1: BUZB (P02)
5 4 3
- - NBUZEN
0 0 0
R R R/W
Description
2 1
BUZEN NBUZSEL BUZSEL
0 0
R/W R/W
0
0
R/W