20 Jun
2008
20 Jun
'08
11:04 a.m.
Seth Morabito wrote:
Does anyone have a NEC 7220 datasheet? I was just
given two of these
chips (D7220AD, 1986 datecodes), and was interested in tinkering with
them. I have no earthly idea what the specs are, though, other than
"graphics controller".
I have a thick databook on this chip. It goes into all the
detailed programming of all the capabilities of the graphics
controller. Basically, the chip generates a raster video
image from some RAM and also implements graphics drawing
primitives in hardware.
--
John Honniball
coredump at gifford.co.uk