XRT94L43IB-F Exar Corporation, XRT94L43IB-F Datasheet - Page 245

• 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

XRT94L43
SONET/SDH OC-12 TO 12XDS3/E3 MAPPER
STS-3/STM-1 TELECOM BUS INTERFACE - RECEIVE DIRECTION
AD21
P
V21
IN
#
STS3RxD_Alarm_2
RxDS3FP_2
TxSTS1FP_2
STS3RxD_Alarm_3
RxDS3FP_3
TxSTS1FP_3
S
IGNAL
N
AME
I/O
O
O
S
CMOS STS-3/STM-1 Receive (Drop) Telecom Bus - Alarm Indica-
CMOS STS-3/STM-1 Receive (Drop) Telecom Bus - Alarm Indica-
T
IGNAL
YPE
tor Output signal - Channel 2; DS3/E3 Frame Synchronizer
Framing Pulse Output Pin - Channel 2:
The function of this output pin depends upon whether or not
theSTS-3/STM-1 Telecom Bus Interface for Channel 2 has
been enabled.
If STS-3/STM-1 Telecom Bus (Channel 2) has been enabled
- STS-3/STM-1 Receive Telecom Bus - Alarm Indicator Out-
put signal:
This output pin pulses "High", coincident with any STS-1 signal
(that is being output via the STS3RXD_D_2[7:0] output pins)
that is carrying an AIS-P indicator.
This output pin is "Low" for all other conditions.
If STS-3/STM-1 Telecom Bus (Channel 2) is disabled -
RxDS3FP_2 (Receive DS3 Frame Pulse Input/Output -
Channel 2):
If the STS-3/STM-1 Telecom Bus (Channel 2) is disabled and if
the DS3/E3 Framer block is enabled then this pin will function
as the Receiving Framing Reference output pin. In this mode,
the Frame Synchronizer block (associated with Channel 2) will
pulse this output pin "High" for one DS3/E3 bit-period, coinci-
dent with the first bit (within a given DS3 or E3 frame) being
output via the DS3/E3/STS1_Data_OUT_2 output pin.
N
tor Output signal - Channel 3; DS3/E3 Frame Synchronizer
Framing Pulse Output Pin - Channel 3:
The function of this output pin depends upon whether or not
theSTS-3/STM-1 Telecom Bus Interface for Channel 3 has
been enabled.
If STS-3/STM-1 Telecom Bus (Channel 3) has been enabled
- STS-3/STM-1 Receive Telecom Bus - Alarm Indicator Out-
put signal:
This output pin pulses "High", coincident with any STS-1 signal
(that is being output via the STS3RXD_D_3[7:0] output pins)
that is carrying an AIS-P indicator.
This output pin is "Low" for all other conditions.
If STS-3/STM-1 Telecom Bus (Channel 3) is disabled -
RxDS3FP_3 (Receive DS3 Frame Pulse Input/Output -
Channel 3):
If the STS-3/STM-1 Telecom Bus (Channel 3) is disabled and if
the DS3/E3 Framer block is enabled then this pin will function
as the Receiving Framing Reference output pin. In this mode,
the Frame Synchronizer block (associated with Channel 3) will
pulse this output pin "High" for one DS3/E3 bit-period, coinci-
dent with the first bit (within a given DS3 or E3 frame) being
output via the DS3/E3/STS1_Data_OUT_3 output pin.
N
239
OTE
OTE
: This pin is inactive if the Frame Synchronizer block,
: This pin is inactive if the Frame Synchronizer block,
associated with Channel 2 is by-passed.
associated with Channel 3 is by-passed.
D
ESCRIPTION
REV. 1.0.2