
13-20
ML63326 User's Manual
Chapter 13 Voice Synthesis
kHz (where N is an integer from 4 to 127)
13.9.2 Melody Data
The melody data is the data in the memory that defines the tone, tone length, and the end tone,
and consists of two bytes. The melody data format is shown in Figure 13-4.
(1) Tone code
The tone code is set in bits 6 through 0 of the melody data. The frequencies that
can be output by the melody circuit are defined as:
65
(N + 2)
The relation between N and tone code bits is:
N = 2
7
N7 + 2
6
N6 + 2
5
N5 + 2
4
N4 + 2
3
N3 + 2
2
N2 + 2
1
N1 + 2
0
N0
If N7 through N2 are all set to "0", there is no melody output for the time specified
by the tone length code. Values for N1 and N0 are irrelevant.
Table 13-6 indicates the relations between tones and tone codes.
Figure 13-4 Melody Data Format
0
END bit
L5
L4
L3
L2
L1
L0
N6
N7
N5
N4
N3
N2
N1
N0
Tone length code
Tone code
First byte
Second byte
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 ...
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Page 179: ...11 8 ML63326 User s Manual Chapter 11 External Memory Transfer Function EXTMEM ...
Page 180: ...Chapter 12 12 Melody Driver MELODY63K ...
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Page 195: ...12 14 ML63326 User s Manual Chapter 12 Melody Driver MELODY63K ...
Page 196: ...13 Chapter 13 Voice Synthesis ...
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Page 228: ...14 Chapter 14 Shift Register SFT ...
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Page 236: ...15 Chapter 15 LCD Driver LCD ...
Page 237: ......
Page 250: ...16 Chapter 16 Battery Low Detect Circuit BLD ...
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Page 255: ...16 4 ML63326 User s Manual Chapter 16 Battery Low Detect Circuit BLD ...
Page 256: ...Chapter 17 17 Power Supply Circuit POWER ...
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Page 260: ...Appendixes ...
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Page 321: ...Appendix 60 ML63326 User s Manual Appendix G ...