MB89890 Series
s PROGRAMMING TO THE EPROM ON THE MB89P899
The MB89P899 is a one-time PROM version of the MB89890 series.
1. Features
• 60-Kbyte PROM on chip
• Option can be set using the EPROM programmer.
• Equivalency to the MBM27C1001, in EPROM mode (when programmed with the EPROM programmer),
supports 4-byte programming mode.
2. Memory Space
Memory space in each mode such as 60-Kbyte PROM, option area is diagrammed below.
Address
Single chip
00000H
00080H
00880H
00FE4H
00FFCH
01000H
I/O
RAM
2 KB
Not available
Option area
PROM
60 KB
EPROM mode
(Corresponding addresses
on the EPROM programmer)
00000H
Not available
00FE4H
00FFCH
01000H
Option area
PROM
60 KB
0FFFFH
0FFFFH
Not available
1FFFFH
3. Programming to the EPROM
In EPROM mode the MB89P899 functions equivalent to the MBM27C1001. This allows the EPROM to be
programmed with a general-purpose EPROM programmer (the electronic signature mode cannot be used) by
using the dedicated socket adapter.
When the operating ROM area for a single chip is 60 Kbytes (01000H to 0FFFFH ) the EPROM can be programmed
as follows:
• Programming procedure
(1) Set the EPROM programmer to MBM27C1001.
(2) Load program data into the EPROM programmer at 01000H to 0FFFFH.
Load option data into addresses 00FE4H to 00FFCH. (For information about each corresponding options,
see “7. Setting OTPROM Options.”)
(3) Program to 00FE4H to 00FFCH, and 01000H to 0FFFFH with the EPROM programmer.
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