XRT94L43IB-F Exar Corporation, XRT94L43IB-F Datasheet - Page 100

• 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

STS-3/STM-1 TELECOM BUS INTERFACE - RECEIVE DIRECTION
REV. 1.0.2
P
C23
J25
IN
#
STS3RxD_C1J1_0
EG_DS3E3_FP_8
TxSTS1FP_8
RxSBFrame_0
CONTINUED
STS3RxD_C1J1_1
EG_DS3E3_FP_9
TxSTS1FP_9
RxSBFrame_1
S
IGNAL
N
AME
I/O
O
O
S
CMOS Continued
CMOS STS-3/STM-1 Receive Telecom Bus - C1/J1 Byte Phase Indicator
T
IGNAL
YPE
If STS-3/STM-1 Telecom Bus (associated with STS-3/STM-1 Channel
0) is disabled then the function of this output pin depends upon
whether Channel 8 has been configured to operate in either the DS3/
E3 or STS-1 Modes):
If Channel 8 is configured to operate in the DS3/E3 Mode -
EG_DS3E3_FP_8 (Egress Direction - DS3/E3 Framing Pulse Output
pin - Channel 8):
If the STS-3/STM-1 Telecom Bus (associated with STS-3/STM-1 Channel
0) is disabled and if Channel 8 is configured to operate in either the DS3
or E3 Modes then this pin will function as the "Egress Direction DS3/E3
Framing Pulse" output pin.
In this mode, the Frame Generator block (associated with Channel 8) will
pulse this output pin "HIGH" for one DS3/E3 bit-period, coincident with
the first bit (within a given DS3 or E3 frame) being output via the "DS3/
E3/STS1_Data_OUT_8" output pin.
If Channel 8 is configured to operate in the STS-1 Mode -
TxSTS1_FP_8 (Transmit Direction - STS-1 Framing Pulse Output pin
- Channel 8):
If the STS-3/STM-1 Telecom Bus (associated with STS-3/STM-1 Channel
0) is disabled and if Channel 8 is configured to operate in the STS-1/
STM-0 Mode, then this pin will function as the "Transmit Direction STS-1
Framing Pulse" output pin
.In this mode, the Transmit STS-1 TOH Processor block (associated with
Channel 8) will pulse this output pin "HIGH" for one STS-1 bit-period,
coincident to whenever the very first bit (within a given STS-1 frame)
being output via the "DS3/E3/STS1_DATA_OUT_8" output pin.
N
Output Signal - Channel 1; Egress Direction DS3/E3 Frame Genera-
tor Framing Pulse Output pin - Channel 9; Transmit STS-1 Framing
Pulse Output pin - Channel 9:
See description for Pin # C23 above using the appropriate channel num-
bers.
If STS-3/STM-1 Telecom Bus (associated with STS-3/STM-1 has
been enabled - STS-3/STM-1 Receive Telecom Bus - C1/J1 Byte
Phase Indicator Output Signal:
If STS-3/STM-1 Telecom Bus (associated with STS-3/STM-1 Channel
1) is disabled then the function of this output pin depends upon
whether Channel 9 has been configured to in either the DS3/E3 or
STS-1` Modes:
OTE
: For those applications in which the XRT94L43 is being interfaced
to DS3/E3/STS-1 LIU devices, we recommend that the user NOT
connect this output pin to any LIU input pin.
94
SONET/SDH OC-12 TO 12XDS3/E3 MAPPER
D
ESCRIPTION
XRT94L43