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PDF CX28398 Data sheet ( Hoja de datos )
| Número de pieza | CX28398 | |
| Descripción | (CX28394 - CX28398) Quad/x16/Octal?T1/E1/J1 Framers | |
| Fabricantes | Conexant Systems | |
| Logotipo |  |
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CX28394/28395/28398
Quad/x16/Octal—T1/E1/J1 Framers
The CX28394/28395/28398 is a family of multiple framers for T1/E1/J1 and Integrated
Service Digital Network (ISDN) primary rate interfaces operating at 1.544 Mbps or 2.048
Mbps. All framers are totally independent, and each combines a sophisticated framing
synchronizer and transmit/receive slip buffers. Operations are controlled through a
series of memory-mapped registers accessible via a parallel microprocessor port.
Extensive register support is provided for alarm and error monitoring, signaling
supervision (including ISDN D-channel/SS7 process), per-channel trunk conditioning,
and Facility Data Link (FDL) maintenance. A flexible serial Time Division Multiplexed
(TDM) system interface that supports bus rates from 1.536 to 8.192 MHz is featured.
Extensive test and diagnostic functions include a full set of loopbacks, Pseudo Random
Bit Sequence (PRBS) test pattern generation, Bit Error Rate (BER) meter, and forced
error insertion.
Functional Block Diagram
Receive
Dual Rail or
NRZ
Receive
Dual Rail or
NRZ
ZCS*
Decode
ZCS*
Encode
T1/E1
Receive
Framer
Overhead
Insertion
RX
Slip
Buffer
TX
Slip
Buffer
T1/E1
Transmit
Framer
Receive
System
Bus
Transmit
System
Bus
Distinguishing Features
• Up to 16 T1/E1/J1 Framers in one
package
• Extensive support of various
protocols
• T1: SF, ESF, SLC®96, T1DM,
TTC JT(J1)
• E1: PCM-30, G.704, G.706, G.732,
ISDN primary rate (ETS300 011,
INS 500)
• Extracts and inserts signaling bits
• Dual HDLC controllers per framer for
data link and LAPD/SS7 signaling
• Two-frame transmit and receive PCM
slip buffers
• Separate or multiplexed system bus
interfaces
• Parallel 8-bit microprocessor port
supports Intel or Motorola buses
• BERT generation and counting
• B8ZS/HDB3/Bit 7 zero suppression
(CX28394 and CX28398 only)
• Operates from a single +3.3 Vdc
± 5% power supply
• Low-power CMOS technology
Applications
Data Link Controllers
DL1+DL2
... Framer #1
Framer #N
JTAG
Test Port
* CX28394 and CX28398 only.
External Data Link
DL3*
Control/Status
Registers
Motorola/Intel
Processor Bus
Framer #N
CX28394 - 4 Frames
CX28398 - 8 Frames
CX28395 - 16 Frames
• Multiline T1/E1 Channel Service
Unit/Data Service Unit (CSU/DSU)
• Digital Access Cross-Connect
System (DACS)
• T1/E1 Multiplexer (MUX)
• PBXs and PCM channel bank
• ISDN Primary Rate Access (PRA)
• Frame Relay Switches and Access
Devices (FRADS)
• SONET/SDH add/drop multiplexers
• T3/E3 channelized access
concentrators
Data Sheet
100054E
June 2000
1 page  
Data Links
• Two full-featured data link controllers
(DL1 and DL2):
– 64-octet transmit and receive
FIFOs
– HDLC Message Oriented Protocol
(MOP)
– Unformatted data transfer
– Unformatted circular buffer
– End of message/buffer interrupt
– Near full/empty interrupts at
selected depth
• Access any bit combination in any
time slot:
– ISDN D-channels at 16, 32, or 64
kbps
– National/spare bits (SA-bits) in 4
kbps increments
– CCS/SS7
– T1DM R-bits
• Access T1 F-bits in even, odd, or all
frames:
– Automatic Performance Report
Message (PRM) generator
– ESF Facility Data Link (FDL)
– Unformatted SLC-96 overhead
– Bit-Oriented Protocol (BOP)
priority codeword generation and
detection
• Separate I/O for external data link
(DL3) on CX28394 and CX28398
devices
100054E
Conexant
5 Page 
CX28394/28395/28398
Quad/x16/Octal—T1/E1/J1 Framers
Table of Contents
3.10 Performance Monitoring Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-49
050—Framing Bit Error Counter LSB (FERR) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-49
051—Framing Bit Error Counter MSB (FERR) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-49
052—CRC Error Counter LSB (CERR). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-49
053—CRC Error Counter MSB (CERR) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-49
054—Line Code Violation Counter LSB (LCV) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-50
055—Line Code Violation Counter MSB (LCV) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-50
056—Far End Block Error Counter LSB (FEBE) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-50
057—Far End Block Error Counter MSB (FEBE). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-50
058—PRBS Bit Error Counter LSB (BERR) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-50
059—PRBS Bit Error Counter MSB (BERR) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-51
05A—SEF/FRED/COFA Alarm Counter (AERR). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-51
3.11 Receive Sa-Byte Buffers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-52
05B—Receive Sa4 Byte Buffer (RSA4) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-52
05C—Receive Sa5 Byte Buffer (RSA5) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-52
05D—Receive Sa6 Byte Buffer (RSA6) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-53
05E—Receive Sa7 Byte Buffer (RSA7) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-53
05F—Receive Sa8 Byte Buffer (RSA8) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-54
3.12 Transmitter Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-55
070—Transmit Framer Configuration (TCR0) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-55
071—Transmitter Configuration (TCR1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-59
072—Transmit Frame Format (TFRM). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-61
073—Transmit Error Insert (TERROR) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-62
074—Transmit Manual Sa-Byte/FEBE Configuration (TMAN) . . . . . . . . . . . . . . . . . . . . . 3-63
076—Transmit Test Pattern Configuration (TPATT) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-65
077—Transmit Inband Loopback Code Configuration (TLB). . . . . . . . . . . . . . . . . . . . . . 3-66
078—Transmit Inband Loopback Code Pattern (LBP) . . . . . . . . . . . . . . . . . . . . . . . . . . 3-67
3.13 Transmit Sa-Byte Buffers. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-68
07B—Transmit Sa4 Byte Buffer (TSA4). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-68
07C—Transmit Sa5 Byte Buffer (TSA5). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-68
07D—Transmit Sa6 Byte Buffer (TSA6). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-69
07E—Transmit Sa7 Byte Buffer (TSA7) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-69
07F—Transmit Sa8 Byte Buffer (TSA8) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-70
3.14 Bit-Oriented Protocol Registers. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-71
0A0—Bit Oriented Protocol Transceiver (BOP) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-71
0A1—Transmit BOP Codeword (TBOP) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-73
0A2—Receive BOP Codeword (RBOP) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-73
0A3—BOP Status (BOP_STAT) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-74
100054E
Conexant
xi
11 Page | ||
| Páginas | Total 30 Páginas | |
| PDF Descargar | [ Datasheet CX28398.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
| CX28394 | (CX28395 / CX28398) Quad/x16/Octal?T1/E1/J1 Framers |  Conexant |
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