XRT94L31IB-L Exar Corporation, XRT94L31IB-L Datasheet - Page 45

• Manufacturer Part Number: XRT94L31IB-L
• Description: IC MAPPER DS3/E3/STS-1 504TBGA
• Manufacturer: Exar Corporation

Specifications of XRT94L31IB-L

• Applications: Network Switches
• Interface: Bus
• Voltage - Supply: 3.14 V ~ 3.47 V
• Package / Case: 504-LBGA
• Mounting Type: Surface Mount
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

REV. 1.0.1
PIN DESCRIPTION OF THE XRT94L31 (REV. B)
PIN #
E13
SSI_CLK(Continued)
TXHDLCDAT_0_3
STS1TXA_0_D3
SIGNAL NAME
I/O
I/O
TTL/
CMOS
TYPE
Transmit STS-1 Telecom Bus Interface - Channel 0 - Data Bus Input
pin number 3/Transmit High-Speed HDLC Controller Input Interface
block - Input Data Bus - Channel 0 - Pin 3/Slow-Speed Interface -
Clock Input/Output signal (Continued):
If the XRT94L31 is configured to operate in the DS3/E3/STS-1 to
STS-3/STM-1 Mapper Mode - Slow-Speed Interface for Ingress Path
- Clock Input/Output - SSI_CLK - Continued:
If configured to operate as an Input Port
If the Slow-Speed Interface is configured to operate as an Input Port,
then this port can be configured to accept a DS3, E3 or STS-1 signal
(from external circuitry) and it will ADD this DS3/E3/STS-1 signal into the
Selected Ingress Direction Channel within the XRT94L31. In this mode,
the SSI_CLK will function as a Clock Input signal that can accept either a
34.368MHz, 44.736MHz or 51.84MHz clock signal (depending upon
which type of signal is being ADDed.
If configured to operate as an Output Port:
If the Slow-Speed Interface is configured to operate as an Output Port,
then this port can be configured to output (or DROP out) the Selected
Ingress Direction Channel within the XRT94L31.In this mode, the
SSI_CLK will function as a Clock Output signal which will be at either the
34.368MHz, 44.736MHz or 51.84MHz clock frequency (depending upon
which type of signal is being DROPed)
3-CHANNEL DS3/E3/STS-1 TO STS-3/STM-1 MAPPER IC
45
DESCRIPTION
XRT94L31