
13-5
ML63326 User's Manual
Chapter 13 Voice Synthesis
13
P83
P82
P81
P80
P8D (008H)
(R/W)
bit 3
bit 2
bit 1
bit 0
Internal voice ROM area/external memory area select
0: The internal voice ROM area is selected (initial value).
1: The memory area external to the IC is selected.
Voice synthesis/external memory transfer instruction select
0: Voice synthesis is selected (initial value).
1: External memory transfer instruction is selected.
(5) Port 8 data register (P8D)
P8D is a 4-bit special function register (SFR) whose low-order 2 bits P80 and P81 set the
output value (see Chapter 10, "Ports" for details).
The high-order 2 bits P82 and P83 of this register are used for selecting voice synthesis or
the external memory transfer instruction, and for selecting the internal voice ROM area or the
external memory area.
All these bits are reset to "0" at a system reset.
(6) Port 8 direction register (P8DIR)
P8DIR is a 4-bit special function register (SFR) whose low-order 2 bits specify the input/output
direction of P80 and P81 (see Chapter 10, "Ports" for details).
The high-order 2 bits P83DIR and P82DIR of this register are used for selecting voice
synthesis or the external memory transfer instruction, and for selecting the internal voice
ROM area or the external memory area.
All these bits are reset to "0" at a system reset.
P83DIR
P82DIR
P81DIR
P80DIR
P8DIR (025H)
(R/W)
bit 3
bit 2
bit 1
bit 0
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 ...