XRT94L43IB-F Exar Corporation, XRT94L43IB-F Datasheet - Page 158

• Manufacturer Part Number: XRT94L43IB-F
• Description: IC MAPPER SONET/SDH OC12 516BGA
• Manufacturer: Exar Corporation

Specifications of XRT94L43IB-F

• Applications: Network Switches
• Interface: Bus
• Voltage - Supply: 2.5V, 3.3V
• Package / Case: 516-BBGA
• Mounting Type: Surface Mount
• Product: Mapper
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

REV. 1.0.2
SONET/SDH SERIAL LINE INTERFACE PINS
P
AB7
AB6
IN
#
EXSWITCH
EXSWITCHDIS
S
IGNAL
N
AME
I/O
O
I
S
CMOS
T
IGNAL
TTL
YPE
External (APS) Switch Output Pin:
This output pin can be used to permit the XRT94L43 to perform
APS externally. Specifically, this output pin can be connected to
some circuitry that permits the re-direction of STS-12/STM-4 traffic,
should an APS event be needed.
N
External (APS) Switch Disable:
This input pin permits the user to configure the XRT94L43 to per-
form Line APS Switching internally or externally.
0 - Configures the XRT94L43 to perform APS externally. In this
mode, the XRT94L43 will execute an APS by toggling the state of
the "EXSWITCH" output pin.
1 - Configures the XRT94L43 to perform APS internally. In this
mode, each of the 12 Receive SONET POH Processor blocks
(within the XRT94L43) will internally switch from processing the
incoming STS-1 SPE data from the Primary Receive STS-12 TOH
Processor block, to now processing the incoming STS-1 SPE data
from the Redundant Receive STS-12 TOH Processor block (or
vice-versa).
OTE
152
: This output pin is disabled if the EXSWITCHDIS input pin
number AB6 is pulled "High".
SONET/SDH OC-12 TO 12XDS3/E3 MAPPER
D
ESCRIPTION
XRT94L43