Truth Table/Functionality

The altdpram function represents asynchronous memory or memory with synchronous inputs and/or outputs.

Synchronous Write to Memory (all inputs registered)
`inclock`	`inclocken`	`wren`	Function
not	H	H	No change.
	L	X	No change.
X	L	L	No change.
	H	H	The memory location pointed to by `wraddress[]` is loaded with `data[]`.

Synchronous Read from Memory
`inclock`	`inclocken`	`rden`	Function
not	H	H	No change.
	L	X	No change.
X	L	L	No change.
	H	H	The `q[]` port outputs the contents of the memory location.

Totally asynchronous memory operations occur when neither inclock nor outclock is connected.

Asynchronous Memory Operations
`wren`	Function
H	The memory location pointed to by `wraddress[]` is loaded with `data[]` and controlled by `wren`. The output `q[]` is asynchronous and reflects the memory location pointed to by `rdaddress`.
L	No change.