XRT94L43IB-F Exar Corporation, XRT94L43IB-F Datasheet - Page 247

• 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
P
B20
IN
#
STS3RxD_D_0_1
ENCODIS_0
RxSBData_1
S
IGNAL
N
AME
I/O
O
S
CMOS Receive STS-3/STM-1 Telecom Bus - Channel 0 - Output
T
IGNAL
YPE
Data Bus Pin Number 1/ENCODIS_0 (General Purpose)
Output Pin:
The function of this output pin depends upon whether or not
theSTS-3/STM-1 Telecom Bus Interface, associated with
Channel 0 is enabled.
If STS-3/STM-1 Telecom Bus (Channel 0) has been enabled
- STS-3/STM-1 Receive Telecom Bus - Output Data bus Pin
Number 1: STSRxD_D_0_1:
This output pin along with STS3RxD_D_0[7:2] and
STS3RxD_D_0_0 function as the STS-3/STM-1 Receive
(Drop) Telecom Bus - Output Data Bus for Channel 0. The
STS-3/STM-1 Telecom Bus Interface will update the data via
this output upon the rising edge of STS3RxD_CLK_0.
If STS-3/STM-1 Telecom Bus (Channel 0) is disabled -
ENCODIS_0 (General Purpose) output Pin.
This output pin can be used as a general purpose output pin.
The state of this output pin can be controlled by writing the
appropriate value into Bit 3 (ENCODIS) within the Line Inter-
face Drive Register associated with Channel 0 (Indirect
Address = 0x1E, 0x80), (Direct Address = 0x1F80).
N
241
OTE
:
ENCODIS_0 because one possible application is to tie
this output pin to an ENCODIS (B3ZS/HDB3 Encoder
Disable) input pin from one of Exar's XRT73L0X/
XRT75L0X DS3/E3/STS-1 LIU devices. However, this
output pin, and the corresponding register bit can be
used for any purpose.
For Product Legacy purposes, this pin is called
D
ESCRIPTION
REV. 1.0.2