UPD77112GC Просмотр технического описания (PDF) - NEC => Renesas Technology
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UPD77112GC Datasheet PDF : 80 Pages
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µPD77110, 77111, 77112
7.2 Data Memory
7.2.1 Data memory map
The data memory space consists of an X memory space and a Y memory space of 64K words × 16 bits each, and
the memory capacity and memory type differ depending on the product.
0xFFFF
µPD77110
External data
memory
(32K words)
0x8000
0x7FFF
0x4000
0x3FFF
0x3840
0x383F
0x3800
0x37FF
0x3000
0x2FFF
0x2000
0x1FFF
0x1000
0x0FFF
0x0000
Data RAM
(16K words)
System
Peripheral
(64 words)
System
Data RAM
(4K words)
System
Data RAM
(4K words)
µPD77111
System
Data ROM
(16K words)
System
Peripheral
(64 words)
System
0x0C00
0x0BFF
Data RAM
(3K words)
µ PD77112
0xC000
0xBFFF
External data
memory
(16K words)
System
Data ROM
(16K words)
System
Peripheral
(64 words)
System
Data RAM
(3K words)
Caution Programs and data cannot be placed at addresses reserved for the system, nor can these
addresses be accessed. If these addresses are accessed, the normal operation of the device
cannot be guaranteed.
Data Sheet U12801EJ4V0DS00
29
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