Fujitsu 8FX User Manual

MB95630H Series
MN702-00009-2v0-E FUJITSU SEMICONDUCTOR LIMITED 537
CHAPTER 26 DUAL OPERATION FLASH MEMORY
26.1 Overview
■ Features of Dual Operation Flash Memory
• Sector configuration
- 8 Kbyte (4 Kbyte + 2 Kbyte × 2)
- 12 Kbyte (8 Kbyte + 2 Kbyte × 2)
- 20 Kbyte (16 Kbyte + 2 Kbyte × 2)
- 36 Kbyte (32 Kbyte + 2 Kbyte × 2)
• Two-bank configuration, enabling simultaneous execution of a program/erase operation and
a read operation
• Automatic algorithm (Embedded Algorithm)
• Erase-suspend/erase-resume functions integrated
• Detecting the completion of programming/erasing using the data polling flag or the toggle
bit
• Detecting the completion of programming/erasing by CPU interrupts
• Capable of erasing data in specific sectors (any combination of sectors)
• Compatible with JEDEC standard commands
• Number of program/erase cycles (minimum): 100000
• Flash read cycle time (minimum): 1 machine cycle
■ Programming and Erasing Flash Memory
• Programming data to and reading data from the same bank of the Flash memory cannot be
executed simultaneously.
• To program data to or erase data from a bank in the Flash memory, copy the program for
programming/erasing either to another bank or to the RAM first, and then execute the
program.
• The dual operation Flash memory enables programming in the Flash memory and
controlling programming by using interrupts. In addition, it is not necessary to download a
program to RAM in order to program data to a bank, thereby reducing the time of program
download and eliminating the need to protecting RAM data against power interruption.

Fujitsu 8FX Specifications

General

Brand	Fujitsu
Model	8FX
Category	Computer Hardware
Language	English