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SH79F3283
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7.3 Flash Program Memory
7.3.1 Features
The program memory consists 32 X 1KB sectors, total 32KB
Programming and erase can be done over the full operation voltage range
Write, read and erase operation are all supported by In-Circuit Programming (ICP)
Support overall/sector erase and programming
Minimum program/erase cycles: Program area: 10000
EEPROM-like area: 100,000
Minimum years data retention: 10
Low power consumption
EEPROM Like Data Block
Program Memory Block
0000H
0000H
Information Block
03FFH
FFFFH
Program Memory Block
Reserved
7FFFH
The SH79F3283 embeds 32K flash program memory for program code. The flash program memory provides electrical
erasure and programming and supports In-Circuit Programming (ICP) mode and Self-Sector Programming (SSP) mode. Every
sector is 1024 bytes.
The SH79F3283 also embeds 1024 bytes EEPROM-like memory block for storing user data. Every sector is 256 bytes. It has
4 sectors.
Flash operation defined:
In-Circuit Programming (ICP): Through the Flash programmer to wipe the Flash memory, read and write operations.
Self-Sector Programming (SSP) mode: User Program code run in Program Memory to wipe the flash memory, read and write
operations.
Flash Memory Supports the Following Operations:
(1) Code Protection Control Mode
SH79F3283 code protection function provides a high-performance security measures for the user. Each partition has four
modes are available.
Code protection mode 0: allow/forbid any programmer write/read operations (not including overall erasure).
Code protection mode 1: allow/forbid through MOVC instructions to read operation in other sectors, or through SSP mode to
erased/write operation.
Code-protect control mode 2: Used to enable/disable the erase/write EEPROM operation through
SSP
Function.
Code-protect control mode 3: Customer password, write by customer, consists of 6 bytes. To enable the wanted protect mode,
the user must use the Flash Programmer to set the corresponding protect bit.
The user must use the following two ways to complete code protection control mode Settings:
1. Flash programmer in ICP mode is set to corresponding protection bit to enter the protected mode.
2. The SSP mode does not support code protection control mode programming.