Clock domain crossing fifo
Abstract
A method and arrangement of passing data from a source clock domain to a non-synchronous receive clock domain are provided. A first processing circuit, located in the source clock domain, links write-address information with the data, and a clock generator generates a transmit clock signal in the source clock domain synchronous with a source clock. The first processing circuit transmits the clock signal and the data with the linked write-address information to a second processing circuit in the receive clock domain. In the receive clock domain, the second processing circuit writes the data at an address designating a storage element corresponding to the linked write-address information. The second processing circuit clocks the data into the storage element synchronous with the accompanying transmit clock signal responsive to a write enable signal from the source clock domain, and reads the data out of the storage element synchronous with a receive domain clock.
Term
Term ended
Projected expiry passed 2 October 2022, 4 years ago.
- Priority
- Filed
- Published
- Projected expiry
- Today
1 priority claim, no other members on record
Priority claims1
| Document | Office | Kind | Date |
|---|---|---|---|
| 99900701 | United States of America | A |
1 legal event, as the office reported them to INPADOC
Events
| Event | Code | |
|---|---|---|
| Ceased as to paragraph 5 lit. 3 law introducing patent treatiesCeasedRER | RER |
Numbers
- Application
- 2772679
Titles2
- German
- FIFO ALS ÜBERGANG VON TAKTREGIONEN
- English
- FIFO AS A TRANSITION OF TACT REGIONS
Classification
- CPC, 5
- H04L7/02
- G06F5/10
- G06F2205/102
- H04L7/0008
- H04L7/005
- IPC, 3
- H04L7 00
- G06F5 10
- H04L7 02