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| PM7347 | |
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SATURN User Network Interface for J2/E3/T3 |
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FEATURES
•
•Provides
•Supports bypass of the internal framers and supports connections to an
•Implements ATM
•Provides a
•Implements the Physical Layer Convergence Protocol (PLCP) for T1 and DS3 transmission systems according to the ATM Forum UNI Specification and ANSI
•Implements the ATM physical layer for broadband ISDN according to
•Uses the PM4341 T1XC, PM6341 E1XC, PM4351 COMET, and framer/ line interface chips for T1 and E1 applications.
•Provides seamless interface to the VORTEX DSLAM chipset,
•Provides programmable
•Provides integral transmit and receive HDLC controllers with
•Provides performance monitoring counters suitable for accumulation periods up to one second.
•Provides an
•Provides a standard
•Low power 3.3 V CMOS technology with 5
•Available in a high density
•Rated for industrial temperature operation.
APPLICATIONS
•DSLAM Uplinks
•Enterprise ATM/PPP Uplinks
•ATM or Frame Relay Switches, Multiplexers, and Routers
•DS3/E3/J2 PPP Internet Access Interfaces
•DS3/E3/J2 Frame Relay Interfaces
BLOCK DIAGRAM
SIG T1: TPOHINS |
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SIG T2: TPOH/TDAT |
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SIG T3: TIOHM/TFP/TMFP |
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SIG T4: TICLK |
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SIG T5: TPOHCLK |
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SIG T6: TPOHFP/TFPO/TMFPO/TGAPCLK/TCELL |
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SIG T7: REF8KI |
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| TOH TOHINS | TOHFP TOHCLK |
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| XBOC |
| TDFR |
| Transmit | 1/2 TTB |
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| Transmit |
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| Receive | Receive |
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| TRAN |
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| SIG | SIG | SIG | SIG | SIG |
| SIG |
| SIG | |
| T1 | T2 | T3 | T4 | T5 |
| T6 |
| T7 | |
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SPLT
TDOTCKTDITMSTRSTB
IEEE
P1149.1
DTCA
TDAT [15:0]
TPRTY
TNEG/TOHM |
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| Line |
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| J2, E3 OR DS3 |
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TPOS/TDATO |
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TCLK |
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RCLK |
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| Line |
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| FRMR |
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RPOS/RDAT |
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| J2, E3 or DS3 |
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RNEG/RLCV/ROHM |
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| RBOC |
| RFDL | PMON | Receive |
| 1/2 TTB |
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| Receive |
| Receive | Perfor- |
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| O/H |
| Receive |
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| mance |
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Transmit
ATM and
PLCP
Framer
ATMF/SPLR
Receive
ATM and
PLCP
Framer
PRGD BER
CCPM
PLCP/cell
TXCP_50
Transmit
RXCP_50
Receive
TXFF
Transmit
RXFF
Receive
MPIF
Microprocessor
System
TSOC
TCA
TADR [2:0]
TENB
TFCLK
PHY_ADR[2:0]
ATM8
RFCLK
RENB
RADR [2:0]
RCA
RSOC
RPRTY
RDAT [15:0]
DRCA
SIG R1: FRMSTAT
SIG R2: RPOCHCLK/ RSCLK/RGAPCLK SIG R3: REF8KO/
RPOHFP/RFPO/RMFPO SIG R4: RPOH/ROVRHD SIG R5: LCD/RDATO
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ROHCLK ROH | ROHFP |
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| RCELL | D[7:0] | INTB RSTB RDB WRB CSB ALE A[10:0] | |||||
SIG | SIG | SIG | SIG SIG | ||||||||||||
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| R5 | R4 | R3 | R1 R2 |
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1999 |