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FS98O21 Datasheet(PDF) 16 Page - Fortune Semiconductor Corp.

Part # FS98O21
Description  8-bit MCU with 2k program EPROM, 128-byte RAM
PDF  136 Pages
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Manufacturer  FORTUNE [Fortune Semiconductor Corp.]
Direct Link  https://www.ic-fortune.com/eng/index.asp
Logo FORTUNE - Fortune Semiconductor Corp.

FS98O21 Datasheet(HTML) 16 Page - Fortune Semiconductor Corp.

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FS98O21
Rev. 1.7
16/136
CPU Core
Figure 1-3 FS98O21 CPU core function block
The “CPU Core Block Diagram” shown in Section 1.11 mainly includes 7 important registers and 2 memory
units. Please see the Figure 1-3 and the Table 1-4 for detailed information.
Stack Register
6 level
OTP ROM
Program Memory
2k x 16 bits
Program
Counter
Instruction
Register
Address
MUX
File Select
Register
(FSR)
SRAM
(File Register)
Data Memory
Instruction
Decoder
Data
MUX
ALU
Work
Register
Status
Register
Control Information
Direct Address (8bits)
Direct Data (8bits)
Program Bus (11bits)



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