Ring Stack
| Name | Description |
|---|---|
| DW | Data Width |
| AW | Address Width |
| Name | Direction | Width | Description |
|---|---|---|---|
| stack_pop | Input | 1 | Pop one data from the stack |
| stack_push | Input | 1 | Push one data to the stack |
| stack_empty | Output | 1 | Indicate that the stack is Empty
|
| data_pop | Output | DW | The data on the top of the stack |
| data_push | Input | DW | The data push into the stack |
| flush | Input | 1 | Synchronous reset of Ring Stack. Active High |
| CLK | Input | 1 | Clock drives the Ring Stack |
| RSTn | Input | 1 | Asynchronous reset of Ring Stack. Active Low |
Ring Stack is the basic element of timing logic. The data will be first in last out through the stack. However, the ring stack will never be full. When the pointer of the bottom will add 1 when a full push comes. In this way, the oldest data will be abandon.
