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ML63326 User's Manual
Chapter 2 CPU and Memory Spaces
2
2.3 Memory Spaces
2.3.1 Program Memory Space
The program memory space is the read-only memory that stores program data.
The program memory space has a data length of 16 bits and extends from address 0000H
to address 5FFFH in the ML63326.
In addition to program data, the program memory can also store ROM table data and the
melody data. Figure 2-6 shows the configuration of the program memory space.
Program data
or
ROM table data
or
Melody data
40 words
24,544 words
Interrupt area
0000H
0010H
0037H
5FFFH
32 words
5FDFH
Test data area
Figure 2-6 Program Memory Space Configuration
After system reset, instruction execution begins at address 0000H. The interrupt area from
address 0010H to address 0037H contains starting addresses of the interrupt processing
routines that are executed when interrupts are generated. (Refer to Chapter 4, "Interrupt.")
ROM table data is transferred to data memory by ROM table reference instructions.
The melody data defines the tone, tone length, and end tone used in the melody circuit
(MELODY63K) of the ML63326. After an MSA instruction specifies the starting address, the
melody data is automatically transferred to the melody circuit when a melody data interrupt
occurs. (Refer to Chapter 12, "Melody Driver.")
Because the test data area contains program data for testing, it cannot be used as a program
data area.
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 ...