XRT94L43IB-F Exar Corporation, XRT94L43IB-F Datasheet - Page 242

• 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
STS-3/STM-1 TELECOM BUS INTERFACE - RECEIVE DIRECTION
AC23
P
IN
#
STS3RxD_DP_2
RxDS3FP_6
TxSTS1FP_6
S
IGNAL
N
AME
I/O
O
S
CMOS STS-3/STM-1 Receive (Drop) Telecom Bus - Parity Output
T
IGNAL
YPE
Pin - Channel 2; DS3/E3 Frame Synchronizer Framing
Pulse Output Pin - Channel 6:
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 - Parity Output Pin:
This output pin can be configured to function as one of the fol-
lowing.
1. The EVEN or ODD parity value of the bits which are output
via the STS3RXD_D_2[7:0] output pins
.2. The EVEN or ODD parity value of the bits which are being
output via the STS3RXD_D_2[7:0] output pins and the states
of the STS3RXD_PL_2 and STS3RXD_C1J1_2 output pins.
This output pin will ultimately be used (by drop-side circuitry) to
verify the verify of the data which is output via the STS-3/STM-
1 Telecom Bus Interface associated with Channel 2.
N
If STS-3/STM-1 Telecom Bus (Channel 2) is disabled -
RxDS3FP_6 (Receive DS3 Frame Pulse Input/Output -
Channel 6):
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 6) 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_6 output pin.
N
236
OTE
OTE
: Any one of these configuration selections can be made
: This pin is inactive if the Frame Synchronizer block,
by writing the appropriate value into the Telecom Bus
Control Register (Indirect Address = 0x00, 0x39),
(Direct Address = 0x0139).
associated with Channel 6 is by-passed.
SONET/SDH OC-12 TO 12XDS3/E3 MAPPER
D
ESCRIPTION
XRT94L43