XRT94L43IB-F Exar Corporation, XRT94L43IB-F Datasheet - Page 89

• 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

RXSTS-1 TOH/POH INTERFACE
XRT94L43
SONET/SDH OC-12 TO 12XDS3/E3 MAPPER
AE20
AB24
AE16
AA23
AD10
P
AF10
AF18
AF12
AF23
W22
F12
F22
T24
A18
H21
E18
K26
D12
E22
U26
B17
F19
K24
J22
IN
#
RxSTS1OHClk_0
RxSTS1OHClk_1
RxSTS1OHClk_2
RxSTS1OHClk_3
RxSTS1OHClk_4
RxSTS1OHClk_5
RxSTS1OHClk_6
RxSTS1OHClk_7
RxSTS1OHClk_8
RxSTS1OHClk_9
RxSTS1OHClk_10
RxSTS1OHClk_11
RxSTS1OHFrame_0
RxSTS1OHFrame_1
RxSTS1OHFrame_2
RxSTS1OHFrame_3
RxSTS1OHFrame_4
RxSTS1OHFrame_5
RxSTS1OHFrame_6
RxSTS1OHFrame_7
RxSTS1OHFrame_8
RxSTS1OHFrame_9
RxSTS1OHFrame_1
0
RxSTS1OHFrame_11
S
IGNAL
N
AME
I/O
O
O
S
CMOS
CMOS
T
IGNAL
YPE
Receive STS-1 TOH and POH Output Port - Clock Output signal:
These output pins, along with RxSTS1OH_n, RxSTS1OHFrame_n,
and RxSTS1OHSel_n function as the Receive STS-1 TOH and POH
Output Port.
These output pins function as the Clock Output signals for the
Receive STS-1 TOH and POH Output Port. The RxSTS1OH_n,
RxSTS1Frame_n and RxSTS1OHSel_n output pins are updated
upon the falling edge of this clock signal.
Receive STS-1 TOH and POH Output Port - Frame Boundary
Indicator:
These output pins, along with RxSTS1OH_n, RxSTS1OHSel_n and
RxSTS1OHClk_n function as the Receive STS-1 TOH and POH
Output Port.
These output pins will pulse "High" coincident with either of the fol-
lowing events.
1. When the very first TOH byte (A1), of a given STS-1 frame, is
being output via the corresponding RxSTS1OH_n output pin.
2. When the very first POH byte (J1), of a given STS-1 frame, is
being output via the corresponding RxSTS1OH_n output pin.
N
OTE
: The external circuitry can determine whether these output
83
pins are pulsing "High" for the first TOH or POH byte by
checking the state of the corresponding RxSTS1OHSel_n
output pin.
D
ESCRIPTION
REV. 1.0.2