XRT94L31IB-L Exar Corporation, XRT94L31IB-L Datasheet - Page 79

• Manufacturer Part Number: XRT94L31IB-L
• Description: IC MAPPER DS3/E3/STS-1 504TBGA
• Manufacturer: Exar Corporation

Specifications of XRT94L31IB-L

• Applications: Network Switches
• Interface: Bus
• Voltage - Supply: 3.14 V ~ 3.47 V
• Package / Case: 504-LBGA
• Mounting Type: Surface Mount
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

REV. 1.0.1
PIN DESCRIPTION OF THE XRT94L31 (REV. B)
PIN #
AC12
C24
F20
STS1RXD_D6_1RXH
DLCDAT_6_1RXDS3
RXHDLCDAT_7_1
RXHDLCDAT_0_2
STS1RXD_D7_1
STS1RXD_D0_2
SIGNAL NAME
RXGFCMSB_2
RXDS3CLK_1
DATA_1
I/O
O
O
O
CMOS
CMOS
CMOS
TYPE
Receive STS-1 Telecom Bus - Channel 1 - Output Data Bus pin num-
ber 6:
The function of this output pin depends upon whether or not the STS-1
Telecom Bus Interface, associated with Channel 1 is enabled.
If STS-1 Telecom Bus (Channel 1) has been enabled
- STS-1 Receive Telecom Bus - Output Data bus pin number 6:
STS1RXD_D6_1
This output pin along with STS1RXD_D7_1 and STS1RXD_D_1[5:0]
function as the STS-1 Receive (Drop) Telecom Bus - Output Data Bus
for Channel 1. The STS-1 Telecom Bus Interface will update the data via
this output upon the rising edge of STS1RXD_CK_1.
RXHDLCDAT_6_1 (Receive HDLC block data output - Channel 1 -
Output Data Bus pin 6):
RXDS3DATA_1 (Receive DS3 data - Channel 1):
Receive STS-1 Telecom Bus - Channel 1 - Output Data Bus pin num-
ber 7:
The function of this output pin depends upon whether or not the STS-1
Telecom Bus Interface, associated with Channel 1 is enabled.
If STS-1 Telecom Bus (Channel 1) has been enabled
- STS-1 Receive Telecom Bus - Output Data bus pin number 7:
STS1RXD_D7_1
This output pin along with STS1RXD_D_1[6:0] function as the STS-1
Receive (Drop) Telecom Bus - Output Data Bus for Channel 1. The
STS-1 Telecom Bus Interface will update the data via this output upon
the rising edge of STS1RXD_CK_1.
N
RXHDLCDAT_7_1 (Receive HDLC block data output - Channel 1 -
Output Data Bus pin 7)
RXDS3CLK_1 (Receive DS3 clock - Channel 1)
Receive STS-1 Telecom Bus - Channel 2 - Output Data Bus pin num-
ber 0:
The function of this output pin depends upon whether or not the STS-1
Telecom Bus Interface, associated with Channel 2 is enabled.
If STS-1 Telecom Bus (Channel 2) has been enabled
- STS-1 Receive Telecom Bus - Output Data bus pin number 0:
STS1RXD_D0_2
This output pin along with STS1RXD_D_2[7:1] function as the STS-1
Receive (Drop) Telecom Bus - Output Data Bus for Channel 2. The
STS-1 Telecom Bus Interface will update the data via this output upon
the rising edge of STS1RXD_CK_2.
N
RXHDLCDAT_0_2 (Receive HDLC block data output - Channel 2 -
Output Data Bus pin 0)
RXGFCMSB_2 (Receive GFC MSB Indicator - Channel 2)
OTE
OTE
: This output pin functions as the MSB (Most Significant Bit) for the
: This input pin functions as the LSB (Least Significant Bit) of the
3-CHANNEL DS3/E3/STS-1 TO STS-3/STM-1 MAPPER IC
STS-1 Receive (Drop) Telecom Bus Interface - Output Data Bus
(Channel 1).
Receive (Drop) Telecom Bus for Channel 2.
79
DESCRIPTION
XRT94L31