XRT94L43IB-F Exar Corporation, XRT94L43IB-F Datasheet - Page 107

• 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
XRT94L43
SONET/SDH OC-12 TO 12XDS3/E3 MAPPER
P
E20
IN
#
STS3RxD_D_0_2
DS3/E3/
STS1_Data_OUT_
0
RxSBData_2
S
IGNAL
N
AME
I/O
O
S
CMOS Receive STS-3/STM-1 Telecom Bus - Channel 0 - Output Data Bus
T
IGNAL
YPE
Pin Number 2/DS3/E3 Framer or Transmit STS-1 TOH Processor
block line interface output Pin - Channel 0 (DS3/E3/
STS1_DATA_OUT_0):
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 2:
STSRxD_D_0_2:
This output pin along with STS3RxD_D_0[7:3] and STS3RxD_D_0[1:0]
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 - DS3/E3/
STS1_DATA_OUT Line Interface Data output Pin - Channel 0:
This pin outputs single-rail DS3, E3 or STS-1 data to a DS3/E3/STS-1
LIU IC. This output pin should be connected to the TPOS/TDATA input of
the DS3/E3/STS-1 LIU IC (corresponding to Channel 0). By default, the
data that is output via this output pin will be updated upon the rising edge
of DS3/E3/STS1_CLK_OUT_0 signal pin number C21.
For DS3/E3 Applications
The XRT94L43 can be configured to update this output signal upon the
falling edge of the DS3/E3/STS1_CLK_0 signal by setting Bit 2 (DS3/E3/
STS1_CLK_OUT Invert), within the I/O Control Register - Channel 0
(Indirect Address = 0x1E, 0x01), (Direct Address = 0x1F01) to a "1".
For STS-1 Applications
The XRT94L43 can not be configured to update the DS3/E3/
STS1_DATA_OUT_0 signal upon the falling edge of DS3/E3/
STS1_CLK_OUT_0.
101
D
ESCRIPTION
REV. 1.0.2