Specify MUX cell library

Post by **iSTART** » 13 Apr 2021, 09:34

[Question] How can I specify our own MUX cell to replace START tool MUX?

[Answer] User can use following steps to replace START tool MUX.
1. In BFL, specify user’s MUX library information file as following.

: P1.png (31.69 KiB) Viewed 45764 times

: P1.png (31.69 KiB) Viewed 45764 times

2. In this example, mux_cell.info looks like following picture. The order of cell description is fixed. The items from left to right are "data input1", "data input2", "mux select", "data output".

: P2.png (153.74 KiB) Viewed 45764 times

: P2.png (153.74 KiB) Viewed 45764 times

3. The generated code looks like following picture. The code “ifdef SYNTHESIS ….” are the generated code according to customer’s MUX cell definition.

: P3.png (132.98 KiB) Viewed 45764 times

: P3.png (132.98 KiB) Viewed 45764 times