PM5380-BI PMC-Sierra, Inc., PM5380-BI Datasheet - Page 34

• Manufacturer Part Number: PM5380-BI
• Description: Network Interface, SATURN User Network Interface (8x155) Telecom Standard Product
• Manufacturer: PMC-Sierra, Inc.

Proprietary and Confidential to PMC-Sierra, Inc., and for its customers’ internal use.
Document No.: PMC- 2010299, Issue 2
Figure 1 Typical STS-3c/STM-1 ATM Switch Port Application
In a typical Packet over SONET/SDH application (i.e. using the PPP protocol) the S/UNI-8x155
performs clock and data recovery in the receive direction and clock synthesis in the transmit
direction of the line interface. On the system side, the S/UNI-8x155 interfaces directly with a
data link layer processor using a SATURN POS-PHY Level 3 32-bit (clocked up to 104 MHz)
synchronous FIFO interface over which packets are transferred.
An application with a POS-PHY Level 3 interface is shown in Figure 2. The initial
configuration and ongoing control and monitoring of the S/UNI-8x155 are normally provided
via a generic microprocessor interface.
ATM Layer Device
RxData[31:0]
TxData[31:0]
RxAdr[1:0]
TxAdr[1:0]
RxSOC
TxSOC
RxClav
TxClav
RxEnb
RxPrty
TxEnb
TxPrty
RxClk
TxClk
UTOPIA Level 3
Interface
TADR[1:0]
TCA
TSOC
TPRTY
TDAT[31:0]
RFCLK
RENB
RADR[1:0]
RCA
RSOC
RPRTY
RDAT[31:0]
TFCLK
TENB
S/UNI®-8x155 ASSP Telecom Standard Product Data Sheet
S/UNI-8x155
PM5380
RXD[0]+/-
RXD[7]+/-
TXD[0]+/-
TXD[7]+/-
SD[0]
SD[7]
Transceiver
Transceiver
Optical
Optical
#1
#8
Released
34