User`s manual

7– Use Model 111 adapter or make adapter for the Model 110 to
program this 32 pin eprom. Adapter can be made to use Model 110
by swapping pins 2 and 24 of the 32 pin site. Jedec pin 2 = A16,
pin 24 = –OE; Non–Jedec pin 2 = –OE, pin 24 = A16.
8– The Model 210 adapter can not program this part in the
synchronous mode.
9– Use Model 483 adapter with this part and selection. Uses Adaptive
algorithm only. Programming the security byte on the 8742AH chip
is accomplished by programming data 0FFh at location 0FF1Fh.
10–Use Model 511 (or 514) adapter with this part and selection. Uses
Standard algorithm only. Programming the security byte on the
8751 or 8744 chip is accomplished by programming data 00h at
location 0FFFFh. The data in location 0FFFh in the 8751 may be
anything but zero, or else the security byte will not program.
11–To program an 87C51 (does NOT apply to FA or FB versions) on
a Model 9000 Versions 5.09 through 5.30 with a 511 (rev–D) or
514 adapter uses this chart for security programming. An 8752AH
or 87C51FA on a Model 9000 Versions 5.26 through 5.30 with a
514 adapter use this chart. Any others refer to note 3.
0000H–0FFFH Code Area. 87C51 (9000 V5.09 thru V5.30)
0000H–1FFFH Code Area, 8752AH (9000 V5.26 thru V5.30)
2000H–201FH Encryption Area for KEY bytes.
6000H Signature Byte 1. 89H = Intel
6001H Signature Byte 2. 57 = 87C51
8000H Lock Bit 1. Program FFH for Lock 1
E000H Lock Bit 2. Program FFH for Lock 2
Lock Bit 3. Not Supported.
It’s not possible to read the encryption table. You can verify it by
reading the programmed code and massage it with your original
code that you programmed the part with. If Lock bit 2 is set, you
will not be able to read or program the part at all, until you erase
it. If Lock bit 1 is set, then you can still read the part, but you can
not program it any more until you erase it.
If you’re using a model 511 adapter (to program 87C51— not FA
or FB versions) purchased before July of 1986, make sure that it is
modified to be a REV–D for use with the Model 9000. If it is not
modified you will not be able to program the encryption or lock
Appendix B Model 9000
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