TFRA08C13 Datasheet, PDF (14/188 Pages) Agere Systems – TFRA08C13 OCTAL T1/E1 Framer

TFRA08C13 OCTAL T1/E1 Framer
Functional Description (continued)
Preliminary Data Sheet
October 2000
TLCK
TND, TPD
LINE FORMAT
ENCODER
(AMI; B8ZS; HDB3)
TRANSMIT
CRC
GENERATOR:
– ESF
– CEPT
TRANSMIT T1/E1 FRAME FORMATTER,
AND FRAME SYNC GENERATOR:
– SF: D4, SLC-96, DDS; SIGNALING
SUPERFRAME
– ESF
– CEPT: BASIC FRAME, CRC-4
MULTIFRAME, AND SIGNALING
MULTIFRAME
– TRANSPARENT FRAMING
TRANSMIT FACILITY DATA LINK
INSERTER:
– SLC-96 FORMAT
– DDS ACCESS
– ANSI T1.403-1989 ESF FORMAT:
• BIT-ORIENTED MESSAGES
• MESSAGE-ORIENTED MESSAGES
TFDL
TFDLCK
TRANSMIT FDL HDLC INSERTER:
– 64-byte TRANSMIT FIFO
– TRANSPARENT MODE
(NO HDLC FRAMING)
– MICROPROCESSOR ACCESS
TRANSMIT PATTERN GENERATOR:
– QUASI-RANDOM: 2²⁰ – 1
– PSEUDORANDOM: 2¹⁵ – 1
– ANSI T1.403 BIT-ORIENTED AND ESF-FDL
ACTIVATE AND DEACTIVATE LINE
LOOPBACK CODES
– CEPT AUXILIARY PATTERN (CEPT = 01)
– CEPT ACTIVATE AND DEACTIVATE
LOOPBACK CODES
– CEPT Sa6 CODES
TRANSMIT SIGNALING INSERTER:
– DS1 ROBBED-BIT SIGNALING (RBS)
– CEPT CHANNEL ASSOCIATED AND
COMMON-CHANNEL SIGNALING
– CONCENTRATION HIGHWAY ACCESS
– MICROPROCESSOR ACCESS
TRANSMIT ELASTIC
STORE BUFFER
(2 FRAMES)
RECEIVE CONCENTRATION
HIGHWAY INTERFACE
(RATE ADAPTER)
CHICK
CHIFS
RCHIDATA/B
TRANSMIT ALARM MONITOR:
– LOSS OF SYSTEM BIFRAME ALIGNMENT
– SYSTEM ALARM INDICATION SIGNAL (AIS)
Figure 3. TFRA08C13 Block Diagram: Transmit Section (One of Eight Channels)
5-6964(F)
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