參數(shù)資料
型號(hào): MB89823R
廠商: Fujitsu Limited
元件分類: 8位微控制器
英文描述: 8-bit Proprietary Microcontroller
中文描述: 8位微控制器專有
文件頁(yè)數(shù): 13/38頁(yè)
文件大?。?/td> 228K
代理商: MB89823R
MB89820 Series
13
I
PROGRAMMING TO THE EPROM ON THE MB89P825
The MB89P825 is an OTPROM (one-time PROM) version for the MB89820 series.
1. Features
16-Kbyte PROM on chip
Options can be set using the EPROM programmer.
Equivalency to the MBM27C256A in EPROM mode (when programmed with the EPROM programmer)
2. Memory Space
Memory space in EPROM mode is diagrammed below.
3. Programming to the EPROM
In EPROM mode, the MB89P825 functions equivalent to the MBM27C256A. This allows the PROM to be
programmed with a general-purpose EPROM programmer (the electronic signature mode cannot be used) by
using the dedicated socket adapter.
Programming procedure
(1) Set the EPROM programmer to the MBM27C256A.
(2) Load program data into the EPROM programmer at 4000
H
to 7FFF
H
(note that addresses C000
H
to FFFF
H
while operating as a single chip assign to 4000
H
to 7FFF
H
in EPROM mode).
Load option data into addresses 3FF0
H
to 3FF5
H
of the EPROM programmer. (For information about each
corresponding option, see “7. OTPROM Option Bit Map.”
(3) Program with the EPROM programmer.
Address
0000
H
0080
H
0180
H
C000
H
FFFF
H
I/O
PROM
16 KB
RAM
BFF6
H
BFF0
H
8000
H
Not available
Not available
Not available
Option area
EPROM mode
(Corresponding addresses on EPROM programmer)
4000
H
7FFF
H
EPROM
16 KB
3FF6
H
3FF0
H
0000
H
Vacancy
(Read value FF
H
)
Vacancy
(Read value FF
H
)
Option area
Single chip
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