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參數(shù)資料
| 型號： | UPD77015GC |
| 廠商： | NEC Corp. |
| 元件分類： | 數(shù)字信號處理 |
| 英文描述： | 16 bits, Fixed-point Digital Signal Processor |
| 中文描述： | 16位定點數(shù)字信號處理器 |
| 文件頁數(shù)： | 21/60頁 |
| 文件大小： | 424K |
| 代理商： | UPD77015GC |
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21
μ
PD77015, 77017, 77018
2.4.2 Data Memory Outline
The
μ
PD77015 has two data memory areas (64K words
×
16 bits each) in X and Y memory areas.
Each memory areas consists of 1K words
×
16 bits data RAM and 2K words
×
16 bits data ROM . As the
μ
PD77017 has interface with the external data memory, 16 K words
×
16 bits external data memory space can
be add to X/Y memories.
The
μ
PD77017 has two data memory areas (64K words
×
16 bits each) in X and Y memory areas.
Each memory areas consists of 2K words
×
16 bits data RAM and 4K words
×
16 bits data ROM . As the
μ
PD77017 has interface with the external data memory, 16 K words
×
16 bits external data memory space can
be add to X/Y memories.
The
μ
PD77018 has two data memory areas (64K words
×
16 bits each) in X and Y memory areas.
Each memory areas consists of 3K words
×
16 bits data RAM and 12K words
×
16 bits data ROM . As the
μ
PD77018 has interface with the external data memory, 16 K words
×
16 bits external data memory space can
be add to X/Y memories.
Each data memory area includes on-chip peripheral area which consists of 64 words.
When the external data memory area is accessed, instruction cycle can be 2 or more by wait function.
3840H
383FH
3800H
37FFH
0400H
03FFH
0000H
System (1984 words)
System (11K words)
Data RAM (3K words)
External Data Memory
(16K words)
μ
5000H
4FFFH
System (28K words)
μ
Peripheral (64 words)
μ
4000H
3FFFH
System (30K words)
4800H
47FFH
FFFFH
System (20K words)
0C00H
0BFFH
7000H
6FFFH
External Data Memory
(16K words)
System (1984 words)
Peripheral (64 words)
System (12K words)
Data RAM (2K words)
0800H
07FFH
External Data Memory
(16K words)
C000H
BFFFH
Data ROM (2K words)
Data ROM (4K words)
Data ROM (12K words)
System (1984 words)
Peripheral (64 words)
System (13K words)
Data RAM (1K words)
Caution
When any data is accessed or stored to system address, normal operation of the device is
not assured.
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