XRT94L43IB-F Exar Corporation, XRT94L43IB-F Datasheet - Page 266

• 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
AC21
P
IN
#
STS3RxD_D_2_4
DS3/E3/
STS1_Clk_OUT_10
RxSBData_4
S
IGNAL
N
AME
I/O
O
S
CMOS Receive STS-3/STM-1 Telecom Bus - Channel 2 - Output
T
IGNAL
YPE
Data Bus Pin Number 4/DS3/E3 Framer or Transmit STS-1
TOH Processor block line interface output Pin - Channel 10
(DS3/E3/STS1_DATA_OUT_10):
The function of this output pin depends upon whether or not
theSTS-3/STM-1 Telecom Bus Interface, associated with
Channel 2 is enabled.
If STS-3/STM-1 Telecom Bus (Channel 2) has been enabled
- STS-3/STM-1 Receive Telecom Bus - Output Data bus Pin
Number 4: STSRxD_D_2_4:
This output pin along with STS3RxD_D_2[7:5] and
STS3RxD_D_2[3:0] function as the STS-3/STM-1 Receive
(Drop) Telecom Bus - Output Data Bus for Channel 2. The
STS-3/STM-1 Telecom Bus Interface will update the data via
this output upon the rising edge of STS3RxD_CLK_2.
If STS-3/STM-1 Telecom Bus (Channel 2) is disabled - DS3/
E3/STS1_DATA_OUT Line Interface Data output Pin -
Channel 10.
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 (correspond-
ing to Channel 10). By default, the data that is being output via
the DS3/E3/STS1_DATA_OUT_10 output pin will be updated
upon the rising edge of this output clock signal.
For DS3/E3 Applications
The XRT94L43 can be configured to update the DS3/E3/
STS1_DATA_10 output signal upon the falling edge of the DS3/
E3/STS1_CLK_10 signal by setting Bit 2 (DS3/E3/
STS1_CLK_OUT Invert), within the I/O Control Register -
Channel 10 (Indirect Address = 0xBE, 0x01), (Direct Address =
0xBF01) to a "1".
For STS-1 Applications
The XRT94L43 can not be configured to update the DS3/E3/
STS1_DATA_OUT_10 signal upon the falling edge of DS3/E3/
STS1_CLK_OUT_10.
260
SONET/SDH OC-12 TO 12XDS3/E3 MAPPER
D
ESCRIPTION
XRT94L43