
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
Содержание ML63326
Страница 3: ......
Страница 13: ......
Страница 14: ...Chapter 1 Overview 1 ...
Страница 15: ......
Страница 37: ...1 22 ML63326 User s Manual Chapter 1 Overview ...
Страница 38: ...Chapter 2 CPU and Memory Spaces 2 ...
Страница 39: ......
Страница 50: ...CPU Control Functions Chapter 3 3 ...
Страница 51: ......
Страница 57: ...3 6 ML63326 User s Manual Chapter 3 CPU Control Functions ...
Страница 58: ...Interrupt INT326 Chapter 4 4 ...
Страница 59: ......
Страница 71: ...4 12 ML63326 User s Manual Chapter 4 Interrupt INT326 ...
Страница 72: ...Clock Generator Circuit OSC Chapter 5 5 ...
Страница 73: ......
Страница 83: ...5 10 ML63326 User s Manual Chapter 5 Clock Generator Circuit OSC ...
Страница 84: ...Time Base Counter TBC Chapter 6 6 ...
Страница 85: ......
Страница 90: ...Timers TIMER Chapter 7 7 ...
Страница 91: ......
Страница 115: ...7 24 ML63326 User s Manual Chapter 7 Timers TIMER ...
Страница 116: ...Chapter 8 8 100 Hz Timer Counter 100HzTC ...
Страница 117: ......
Страница 121: ...8 4 ML63326 User s Manual Chapter 8 100 Hz Timer Counter 100HzTC ...
Страница 122: ...Chapter 9 9 Watchdog Timer WDT ...
Страница 123: ......
Страница 128: ...Chapter 10 10 Ports INPUT OUTPUT I O PORT ...
Страница 129: ......
Страница 170: ...Chapter 11 11 External Memory Transfer Function EXTMEM ...
Страница 171: ......
Страница 179: ...11 8 ML63326 User s Manual Chapter 11 External Memory Transfer Function EXTMEM ...
Страница 180: ...Chapter 12 12 Melody Driver MELODY63K ...
Страница 181: ......
Страница 195: ...12 14 ML63326 User s Manual Chapter 12 Melody Driver MELODY63K ...
Страница 196: ...13 Chapter 13 Voice Synthesis ...
Страница 197: ......
Страница 228: ...14 Chapter 14 Shift Register SFT ...
Страница 229: ......
Страница 236: ...15 Chapter 15 LCD Driver LCD ...
Страница 237: ......
Страница 250: ...16 Chapter 16 Battery Low Detect Circuit BLD ...
Страница 251: ......
Страница 255: ...16 4 ML63326 User s Manual Chapter 16 Battery Low Detect Circuit BLD ...
Страница 256: ...Chapter 17 17 Power Supply Circuit POWER ...
Страница 257: ......
Страница 260: ...Appendixes ...
Страница 261: ......
Страница 321: ...Appendix 60 ML63326 User s Manual Appendix G ...