Pinout on Agnus?
05-Oct-90 01:14:37
Sb: #1472-Pinout on Agnus?
Fm: Don Curtis/SYSOP 76703,4321
To: David M. Dowdle 71061,474
David,
Hummm…interesting. I've got it from the insert that came with
the original A2000's. I never counted the pins on the chip, but it shows
it as an 84 pin PLCC chip. Thus, it'd have 21 pins per side. With pin #1
being in the middle of the "top"…pin #11 would be the top leftmost pin.
Add 21 and pin 32 would be the left bottom pin, 33 would be the first pin
on the bottom left, and 34 (which is 28Mhz clock input) the 2nd from the
left on the bottom.
Well..actually, I just remembered I do have an extra Agnus chip
sitting here in my drawer. So looking at it…and counting…pin #34 is
definately the 2nd from the left on the bottom of the chip…as described
in the insert I have.