CY7C955 Description
The Cypress Semiconductor CY7C955 is a Transceiver chip designed to carry ATM cells across SONET/SDH systems. On the transmit side, ATM cells ing from the Utopia interface are being mapped into SONET/SDH frames and then serialized for transmission over fiber or twisted pair (through an optical module or an equalizer chip). On the receive side, serial SONET/SDH datastreams ing from an optical module or an equalizer...
CY7C955 Key Features
- WAN and LAN ATM physical layer device
- Provides plete physical layer transport of ATM cells at
- STS-3c/ STM -1 rate of 155.52 MHz
- STS-1 rate of 51.84 MHz
- pliant with ATM Forum User Network Interface 3.1 specification
- UTOPIA ATM interface
- ATM cell processing including
- HEC generation/verification
- Cell scrambling/descrambling
- Rate adaption/idle cell filtering