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PM5347 S/UNI® PLUS
Enhanced ATM SATURN® User Network Interface for 51 and 155 Mbit/s
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Features
GENERAL
- Monolithic SATURN Compatible Asynchronous Transfer Mode (ATM) network interface.
- Implements the ATM transmission convergence sublayer for ATM according to ATM Forum specifications and ITU-T recommendations using the SONET/SDH 155.52 Mbit/s format.
- Also implements ATM Forum specified 'Mid-range PHY' rates of 51.52, 25.92 and 12.96 Mbit/s.
- Includes on-chip clock recovery and clock synthesis at all rates. Clocking can be bypassed for use with external clock sources. Operates in timing master or timing slave (loop timed) modes.
- Provides TTL compatible inputs and outputs. Provides differential pseudo-ECL compatible serial line side inputs. Supports Fiber Optic, Unshielded Twisted Pair and Shielded interfaces.
- Processes all SONET/SDH UNI overhead.
- Provides access to section and line data links and all additional transport and path overhead to allow additional external processing for full SONET/SDH Network-Node Interface (NNI) compliance.
- Provides synchronous 8-bit or 16-bit SCI-PHY system side interface with 4 cell deep FIFO buffers in both transmit and receive paths with parity support.
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- Inserts and extracts ATM payloads using cell delineation.
- Provides a generic 8-bit microprocessor bus interface for configuration, control and status monitoring.
- Software compatible with the PM5346 S/UNI 155 LITE and the PM5355 S/UNI 622.
- Provides a standard 5-signal P1149.1 JTAG test port for boundary scan board test purposes.
- Low power, +5 Volt CMOS technology.
- Packaged in a 208-pin (28x28 mm) PQFP with 0.5 mm pin pitch.
- Industrial Temperature Range Operation (-40 °C to +85 °C).
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RECEIVE SECTION
- Filters and captures the automatic protection switch channel (K1, K2) bytes in readable registers and detects APS byte failure.
- Extracts the 16 or 64 byte section trace (J0) sequence and the 16 or 64 byte path trace (J1) sequence into internal register banks. Extracts the DCC channels (D1-D3 and D4-D12) for optional external processing.
- Detects loss of signal (LOS), out of frame (OOF), loss of frame (LOF), line alarm indication signal (AIS), line remote defect indication (RDI-L), loss of pointer (LOP), path alarm indication signal (AIS), path remote defect indication signal (RDI-P) and loss of cell delineation (LCD).
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- Counts received section B1 errors, line B2 errors, line FEBEs, path B3 errors and path FEBEs for performance monitoring purposes.
- Counts received cells written into the receive FIFO, received HCS errored cells that are discarded, and received HCS errored cells that are corrected and passed through the receive FIFO.
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TRANSMIT SECTION
- Counts transmit cells read from the transmit FIFO.
- Inserts a register programmable path signal label (C2).
- Inserts path B3, path FEBE indications, line B2, line FEBE indications, section B1 to allow performance monitoring at the far end.
- Optionally inserts the 16 or 64 byte section trace (J0) sequence and the 16 or 64 byte path trace (J1) sequence from internal register banks.
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- Optionally inserts an externally generated section user channel (F1), order wire channels (E1, E2) and the DCC channels (D1-D3 and D4-D12) via serial interfaces.
- Optionally inserts path AIS, path RDI, line AIS and line RDI.
- Optionally inserts register programmable APS (K1, K2) and synchronization status (Z1) bytes.
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Applications
- ATM Switching Systems
- ATM Access Systems
- LAN Switches, Hubs and Routers
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- ATM Test Equipment
- SONET or SDH ATM Interfaces
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S/UNI-155-PLUS Short Form Data Sheet [152 kB] PMC-1930909 
S/UNI-PLUS [23 kB] 
Boundary Scan Description Language (BSDL) Source Code for the PM5347 S/UNI-PLUS Device [19 KB] PMC-1960757