参数资料
型号: M38D5XGXHP
元件分类: 微控制器/微处理器
英文描述: 8-BIT, FLASH, 6.25 MHz, MICROCONTROLLER, PQFP80
封装: 12 X 12 MM, 0.50 MM PITCH, PLASTIC, LQFP-80
文件页数: 127/142页
文件大小: 2004K
代理商: M38D5XGXHP
Rev.3.04
May 20, 2008
Page 85 of 134
REJ03B0158-0304
38D5 Group
Parallel I/O Mode
The parallel I/O mode is used to input/output software
commands, address and data in parallel for operation (read,
program and erase) to internal flash memory.
User ROM and Boot ROM Areas
In parallel I/O mode, the User ROM and Boot ROM areas shown
in Figure 70 can be rewritten. Both areas of flash memory can be
operated on in the same way.
The Boot ROM area is 4 Kbytes in size and located at addresses
F00016 through FFFF16. Make sure program and block erase
operations are always performed within this address range.
(Access to any location outside this address range is prohibited.)
In the Boot ROM area, an erase block operation is applied to
only one 4 K byte block. The boot ROM area has had a standard
serial I/O mode control program stored in it when shipped from
the factory. Therefore, using the MCU in standard serial I/O
mode, do not rewrite to the Boot ROM area.
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