Melody Driver Registers - Oki ML63611 User Manual

ML63611 User's Manual
Chapter 11 Melody Driver (MELODY)
11.3

Melody Driver Registers

(1) Tempo Register (TEMPO)
TEMPO is a 4-bit special function register (SFR) that sets the tempo of the melody driver.
TEMPO (096H)
Melody tempo select
bit 3 bit 2 bit 1
0 0
0 0
0 0
0 0
0 1
0 1
0 1
0 1
1 0
1 0
1 0
1 0
1 1
1 1
1 1
1 1
(2) Melody Driver Control Register (MDCON)
MDCON is a 4-bit special function register (SFR) that controls output of the melody driver.
MDCON (097H)
Melody status flag
0 : Melody stopped (initial value)
1 : Melody output
Buzzer output ON/OFF control
0 : Buzzer output OFF (initial value)
1 : Buzzer output ON
Buzzer mode select
bit 1 bit 0
0 0 : Intermittent tone 1 (initial value)
0 1
: Intermittent tone 2
1 0
: Single tone
1 1
: Continuous tone
OPTION A (C): 1.5 V (3.0 V), Without regulator
circuit for LCD bias
bit 3
TMP3
(R/W)
bit 0
0 0
: = 480 (initial value)
0 1
: = 480
1 0
: = 320
1 1 : = 240
0 0 : = 192
0 1
: = 160
≅ 137
1 0
:
1 1
: = 120
≅ 107
0 0
:
0 1 : = 96
≅ 87
1 0
:
1 1 : = 80
≅ 74
0 0
:
≅ 69
0 1
:
1 0 : = 64
1 1
: = 60
bit 3
MSF
(R/W)
bit 2 bit 1
TMP2 TMP1
bit 2 bit 1
EMBD MBM1
11 – 2
OPTION B (D): 1.5 V (3.0 V), With regulator
bit 0
TMP0
bit 0
MBM0
circuit for LCD bias