23 Aug
2012
23 Aug
'12
2:17 p.m.
[Amstrad PCW]
Mine has 512K of memory installed. The downside is
the utter lack of
a standard peripheral interface (e.g. Centronics parallel or RS232)
There was an Amstrad Centronics/RS232 interface for it, which plugged ont
othe 50 pin bus conenctor. Fidning infromation on it is non-trivial, I
assuem there was a servicv emanual for it, but I have never seen it. I do
have oen somwwhere, and from what I recall it's all stnadard ICs inside
(TTL and Z80 peripehral ICs, mostly). Next time I come across it and hard
soem free time I might be convinced to trace out the schematic.
or a way to modify the boot code, which appears to be
contained in
the ASIC printer interface.
I thought the pritner controller was an 8041/8042 thingy. There's a PQFP
SAIC that contaisn most of the video circuitry, etc, I think the boot
'ROM is hardwired logic in there.
-tony