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library(cells) {
cell (DFF) {
ff (FF) {
next_state: "D";
clocked_on: "CLK";
clear: "!CLR";
}
pin (CLK) {
direction: input;
clock: true;
}
pin (CLR) {
direction: input;
}
pin (D) {
direction: input;
}
pin (Q) {
direction: output;
function: "FF";
}
}
cell (AND2) {
area : 1;
pin(a) {
direction: input;
}
pin(b) {
direction: input;
}
pin(o) {
function : "(A & B)";
direction: output;
}
}
cell (NAND2) {
area : 1;
pin(a) {
direction: input;
}
pin(b) {
direction: input;
}
pin(o) {
function : "!(A & B)";
direction: output;
}
}
cell (OR2) {
area : 1;
pin(a) {
direction: input;
}
pin(b) {
direction: input;
}
pin(o) {
function : "(A + B)";
direction: output;
}
}
cell (NOR2) {
area : 1;
pin(a) {
direction: input;
}
pin(b) {
direction: input;
}
pin(o) {
function : "!(A + B)";
direction: output;
}
}
}