參數(shù)資料
型號: DS21FT42N
廠商: DALLAS SEMICONDUCTOR
元件分類: Digital Transmission Controller
英文描述: DATACOM, FRAMER, PBGA300
封裝: 27 X 27 MM, BGA-300
文件頁數(shù): 25/115頁
文件大?。?/td> 534K
代理商: DS21FT42N
DS21FF42/DS21FT42
17 of 115
NEW FEATURES
Additional hardware signaling capability including:
Receive signaling re-insertion to a backplane multiframe sync
Availability of signaling in a separate PCM data stream
Signaling freezing
Interrupt generated on change of signaling data
Full HDLC controller with 64–byte buffers in both transmit and receive paths. Configurable for FDL
or DS0 access
Per–channel code insertion in both transmit and receive paths
Ability to monitor one DS0 channel in both the transmit and receive paths
RCL, RLOS, RRA, and RAIS alarms now interrupt on change of state
Detects AIS-CI
8.192 MHz clock synthesizer
Per–channel loopback
Ability to calculate and check CRC6 according to the Japanese standard
Ability to pass the F–Bit position through the elastic stores in the 2.048 MHz backplane mode
IEEE 1149.1 support
FEATURES
Four T1 DS1/ISDN–PRI/J1 framing transceivers
All four framers are fully independent
Frames to D4, ESF, and SLC–96 R formats
Each of the four framers contain dual two–frame elastic store slip buffers that can connect to
asynchronous backplanes up to 8.192 MHz
8–bit parallel control port that can be used directly on either multiplexed or non–multiplexed buses
(Intel or Motorola)
Extracts and inserts robbed bit signaling
Detects and generates yellow (RAI) and blue (AIS) alarms
Programmable output clocks for Fractional T1
Fully independent transmit and receive functionality
Generates and detects in–band loop codes from 1 to 8 bits in length including CSU loop codes
Contains ANSI one’s density monitor and enforcer
Large path and line error counters including BPV, CV, CRC6, and framing bit errors
Pin compatible with DS21Q44 E1 Enhanced Quad E1 Framer
3.3V supply with 5V tolerant I/O; low power CMOS
Available in 128–pin TQFP package
相關(guān)PDF資料
PDF描述
DS21FF42 DATACOM, FRAMER, PBGA300
DS21FF42N DATACOM, FRAMER, PBGA300
DS21FT44N DATACOM, FRAMER, PBGA300
DS21FT44 DATACOM, FRAMER, PBGA300
DS21Q352 DATACOM, PCM TRANSCEIVER, PBGA256
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
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