DS26524_07 Datasheet, PDF (65/273 Pages) Maxim Integrated Products – Quad T1/E1/J1 Transceiver

DS26524 Quad T1/E1/J1 Transceiver
8.9.17 Framer Payload Loopbacks
The framer, payload, and remote loopbacks are controlled by Receive Control Register 3 (RCR3).
Table 8-32. Registers Related to Framer Payload Loopbacks
RECEIVE CONTROL
REGISTER 3 (RCR3)
FRAMER
ADDRESSES
FUNCTION
Framer Loopback
083h
Transmit data output from the framer is looped back to the receiver.
Payload Loopback
083h
The 192-bit payload data is looped back to the transmitter.
Remote Loopback
083h
Data recovered by the receiver is looped back to the transmitter.
Note: The addresses shown are for Framer 1. Addresses for Framers 2 to 4 can be calculated using the following: Framer n = (Framer 1
address + (n - 1) x 200h); where n = 2 to 4 for Framers 2 to 4.
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