C
[email protected]
- Jan 1, 1970
- 0
Hi guys.
Just wondering whether someone could suggest a small PLD which would
be able to fit my design for a 16-bit wide interrupt flag register.
I'm hoping for a DIP package, but I suppose PLCC will do. Not keen on
hand soldering surface mount.
The design consists of 16 input pins going into the J inputs of 16 JK
flip flops. K inputs are unused. The 16 Q outputs go to a 16-1 mux
whose single output goes to an output pin. The 16 CLR inputs go to a
1-16 demux whose enable input goes to an input pin. The select lines
of the mux & demux are connected and brought to 4 input pins. Finally
the 16 input pins also go to a 16 input OR gate whose output goes to
an output pin.
Just wondering whether someone could suggest a small PLD which would
be able to fit my design for a 16-bit wide interrupt flag register.
I'm hoping for a DIP package, but I suppose PLCC will do. Not keen on
hand soldering surface mount.
The design consists of 16 input pins going into the J inputs of 16 JK
flip flops. K inputs are unused. The 16 Q outputs go to a 16-1 mux
whose single output goes to an output pin. The 16 CLR inputs go to a
1-16 demux whose enable input goes to an input pin. The select lines
of the mux & demux are connected and brought to 4 input pins. Finally
the 16 input pins also go to a 16 input OR gate whose output goes to
an output pin.