The QuadFALC T1/E1/J1 Framer
TableFLASH Addr 1st MAP | 2nd MAP | Size | Description |
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The FLASH device is normally controlled by the PowerQUICC II memory controller unit using
The FLASH device is not intended to be accessed through the CompactPCI bus. Because the FLASH device has an
For more information, see Access to the FLASH EEPROM Through CompactPCI on page 24.
The QuadFALC T1/E1/J1 Framer
The 4538 Communication Controller includes one QuadFALC device which controls four independent T1/E1/J1 interfaces. For each interface, the QuadFALC includes a framer and an LIU with data and clock recovery, a frame aligner with two frame elastic buffers for receive clock wander and jitter compensation, a signaling controller with a HDLC controller and 64 bytes deep FIFOs, and an
Each line can be independently configured for E1 or T1. The pulse shape for CEPT E1 applications is programmed according to
•Data Coding: HDB3
•Voltage of nominal pulse: 3 V (CCITT G703)
•Return Loss Transmitter:
•Line Impedance: 120 Ohm
The pulse shape for T1 applications is programmed according to ANSI T1.403:
•Data Coding: B8ZS
•Voltage of nominal pulse: 3 V
•Return Loss Transmitter:
•Line Impedance: 100 Ohm
The pulse shape for J1 applications is programmed according to
•Data Coding: B8ZS
•Voltage of nominal pulse: 3 V (TBV)
•Return Loss Transmitter:
•Line Impedance: 110 Ohm
30 | Interphase Corporation |