
12-1
ML63326 User's Manual
Chapter 12 Melody Driver (MELODY63K)
12
Chapter 12 Melody Driver (MELODY63K)
12.1 Overview
The ML63326 has a melody circuit and buzzer circuit in the microcontroller section.
While automatically reading melody data in ROM (program memory) as specified by an MSA
instruction, the melody circuit outputs a melody signal via the MD and MDB pins or DACOUT
and AOUT pins.
The melody circuit can select 29 different tones, 63 different tone lengths, and 15 different
tempos.
The buzzer circuit has four different buzzer output modes at a frequency of 4 kHz. The buzzer
driver signal is output via the MD and MDB pins or DACOUT and AOUT pins.
Melody output is a higher priority operation than buzzer output.
12.2 Melody Driver Configuration
The melody driver configuration is shown in Figure 12-1.
Data bus
Melody end interrupt
request
MSA instruction
Melody data
request
Melody
data
14
TEMPO
MDCON
Melody circuit & Buzzer circuit
in the microcontroller section
4
4
4
4
Melody circuit
&
Buzzer circuit
Voice synthesis section (see Note)
Selector circuit, etc.
AV
DD
DACOUT
AOUT
Level shifter circuit
Selector circuit, etc.
MB
MDB
Figure 12-1 Melody Driver Configuration
!
Note:
See Chapter 13, "Voice Synthesis" for details of the voice synthesis section.
Summary of Contents for ML63326
Page 3: ......
Page 13: ......
Page 14: ...Chapter 1 Overview 1 ...
Page 15: ......
Page 37: ...1 22 ML63326 User s Manual Chapter 1 Overview ...
Page 38: ...Chapter 2 CPU and Memory Spaces 2 ...
Page 39: ......
Page 50: ...CPU Control Functions Chapter 3 3 ...
Page 51: ......
Page 57: ...3 6 ML63326 User s Manual Chapter 3 CPU Control Functions ...
Page 58: ...Interrupt INT326 Chapter 4 4 ...
Page 59: ......
Page 71: ...4 12 ML63326 User s Manual Chapter 4 Interrupt INT326 ...
Page 72: ...Clock Generator Circuit OSC Chapter 5 5 ...
Page 73: ......
Page 83: ...5 10 ML63326 User s Manual Chapter 5 Clock Generator Circuit OSC ...
Page 84: ...Time Base Counter TBC Chapter 6 6 ...
Page 85: ......
Page 90: ...Timers TIMER Chapter 7 7 ...
Page 91: ......
Page 115: ...7 24 ML63326 User s Manual Chapter 7 Timers TIMER ...
Page 116: ...Chapter 8 8 100 Hz Timer Counter 100HzTC ...
Page 117: ......
Page 121: ...8 4 ML63326 User s Manual Chapter 8 100 Hz Timer Counter 100HzTC ...
Page 122: ...Chapter 9 9 Watchdog Timer WDT ...
Page 123: ......
Page 128: ...Chapter 10 10 Ports INPUT OUTPUT I O PORT ...
Page 129: ......
Page 170: ...Chapter 11 11 External Memory Transfer Function EXTMEM ...
Page 171: ......
Page 179: ...11 8 ML63326 User s Manual Chapter 11 External Memory Transfer Function EXTMEM ...
Page 180: ...Chapter 12 12 Melody Driver MELODY63K ...
Page 181: ......
Page 195: ...12 14 ML63326 User s Manual Chapter 12 Melody Driver MELODY63K ...
Page 196: ...13 Chapter 13 Voice Synthesis ...
Page 197: ......
Page 228: ...14 Chapter 14 Shift Register SFT ...
Page 229: ......
Page 236: ...15 Chapter 15 LCD Driver LCD ...
Page 237: ......
Page 250: ...16 Chapter 16 Battery Low Detect Circuit BLD ...
Page 251: ......
Page 255: ...16 4 ML63326 User s Manual Chapter 16 Battery Low Detect Circuit BLD ...
Page 256: ...Chapter 17 17 Power Supply Circuit POWER ...
Page 257: ......
Page 260: ...Appendixes ...
Page 261: ......
Page 321: ...Appendix 60 ML63326 User s Manual Appendix G ...