參數(shù)資料
型號(hào): 38D5
廠商: Renesas Technology Corp.
英文描述: SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
中文描述: 單芯片8位CMOS微機(jī)
文件頁數(shù): 84/141頁
文件大小: 2027K
代理商: 38D5
Rev.3.01
REJ03B0158-0301
Aug 08, 2007
Page 84 of 134
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
F000
16
through FFFF
16
. 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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