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KX-Fi200
Z-L_, MI-MUH¥
MAP'
FFFFFFH
307FFFH
300000H
200000H
03FFFFH
000000H
(CPU ADDRESS)
EMPTY
DRAM
256KB
(IC415, 416)
EMPTY
SRAM
32KB
(IC403)
I/O
EMPTY
ROM
256KB
(IC402)
47FFFF
440000
/
/
/
/
/
/
/
/
/
/
/
/
/
20FFFFH/
/
/
/
/(20FE1FH
20FE00H
20F20FH
20F200H
20F100H
20E000H
2ocoo -
EMPTY
MODEM
(10405)
EMPTY
EMPTY
ANALOG PORT
ASIC (IC404)
INTERNAL RESISTOR
SCREEN -
DISPOSITION
SRAM
2-4. ROM (IC402)
The 256KB ROM (EPROM or MASKROM) is used to store program.The addressis 000000H - 03FFFFH.
2-5. STATIC
RAM (IC403)
The 32KB SRAM that is backed up with lithium battery is used. This holds one-touch dial, automatic dial and ID, etc. The ad-
dress is 300000H - 307FFFH.
2-6. DYNAMIC
RAM (IC415,
416)
This DRAM is used for CPU work. The address is 440000H - 47FFFFH.
1) Read, Write, Refresh timing
Refresh is excuted evey 16.2ps.
- 89 -
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