Dwight Elvey
Veteran Member
I have a RAM board with 64K of 6116s. It has not manufacture label. The switches are labeled. There are some for extended addressing above A15, These I understand. It has another set of switches labeled:
E000
E800
F000
F800
EXT ADR
HALF PHANT
PHANT
I assume EXT ADR enables extended addressing. I would think that the E000 thru F800 disable the RAM for areas with typical ROM.
I would guess PHANT is to observe the PHANTOM pin.
What would HALF PHANT be?
Dwight
E000
E800
F000
F800
EXT ADR
HALF PHANT
PHANT
I assume EXT ADR enables extended addressing. I would think that the E000 thru F800 disable the RAM for areas with typical ROM.
I would guess PHANT is to observe the PHANTOM pin.
What would HALF PHANT be?
Dwight