IDT82P20416 Integrated Device Technology, IDT82P20416 Datasheet - Page 24

• Manufacturer Part Number: IDT82P20416
• Description: 16-channel Short Haul T1/e1/j1 Line Interface Unit
• Manufacturer: Integrated Device Technology

3.2.7
sponding receiver.
RTIPn/RRINGn pins are forced to High-Z state. The pins on receive
system interface (including RDn/RDPn, RDNn, RCLKn) will be in High-Z
state if the RHZ bit (b6, RCF0,...) is ‘1’ or in low level if the RHZ bit (b6,
RCF0,...) is ‘0’.
receiver to achieve steady state, i.e., to return to the previous configura-
tion and performance.
Functional Description
IDT82P20416
Set the R_OFF bit (b5, RCF0,...) to ‘1’ will power down the corre-
In this way, the corresponding receive circuit is turned off and the
After clearing the R_OFF bit (b5, RCF0,...), it will take 1 ms for the
RECEIVER POWER DOWN
24
16-CHANNEL SHORT HAUL T1/E1/J1 LINE INTERFACE UNIT
3.3
3.3.1
Single Rail NRZ Format mode, Dual Rail NRZ Format mode and Dual
Rail RZ Format mode, as selected by the T_MD[1:0] bits (b1~0,
TCF1,...).
mode) or 2.048 MHz (in E1 mode) clock is input on TCLKn, the transmit
system interface is in Single Rail NRZ Format mode. In this mode, the
data is encoded and sampled on the active edge of TCLKn.
(in T1/J1 mode) or 2.048 MHz (in E1 mode) clock is input on TCLKn, the
transmit system interface is in Dual Rail NRZ Format mode. In this
mode, the data is pre-encoded and sampled on the active edge of
TCLKn.
clock is input, the transmit system interface is in Dual Rail RZ Format
mode. In this mode, the data is pre-encoded.
system interface.
The data from the system side is input to the device in three modes:
If data is input on TDn in NRZ format and a 1.544 MHz (in T1/J1
If data is input on TDPn and TDNn in NRZ format and a 1.544 MHz
If data is input on TDPn and TDNn in RZ format and no transmit
Table-4 summarizes the multiplex pin used in different transmit
TRANSMIT PATH
TRANSMIT SYSTEM INTERFACE
December 17, 2009