3 Mar
2005
3 Mar
'05
8:46 a.m.
Heinz wrote:
my M7270 contains a control chip 1611-H 21-16890-00
(8015 date),
and CP1621B14 data chip while my
M7264 has a DEC badged ceramic 1611A 21-11549-01 (7717 date)
The CP1611 is the data chip, and the CP1621 (23-002C4) is the control
chip. The MICROMs are CP1631B-07 (23-002B5) and CP1631B-10 (23-001B5)
for the standard instruction set, and CP1631B-15 (23-003B5) for EIS/FIS.
The standard instruction set MICROMs may both be packaged onto a
single hybrid, DEC P/N 23-002B6 or 23-003B6.
The AM100 appears to have a1611B. I assume these are
diff. mask sets.
What the WD1600 stock set use? The Pascal Microengine?
The WD16 uses CP1611B-03 for data, CP1661B-03 for control, and
CP1631B-27, -29, and -30 MICROMs.
The WD/9000 Pascal microengine chipset uses CP2151B data, CP2161B-02
control, nd C2161B-14, -15, and -18 for the final version of the
MICROMs, though there were earlier releases that presumably had
other numeric suffixes.
It is known that the CP2151 data chip will work on an AM100 board
(WD-16), so it probably will work on an LSI-11 as well. It is not
yet known whether a CP1611 data chip will work in a Pascal Microengine;
it is possible that the CP2151 has added features, but it is also
possible that they are functionally identical.
None of the control chips and MICROMs are interchangeable.
Eric