XRT94L31IB-L Exar Corporation, XRT94L31IB-L Datasheet - Page 78

• 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

XRT94L31
3-CHANNEL DS3/E3/STS-1 TO STS-3/STM-1 MAPPER IC
PIN DESCRIPTION OF THE XRT94L31 (REV. B)
PIN #
G23
D23
E21
STS1RXD_D4_1RXH
STS1RXD_D5_1RXH
DLCDAT_5_1RXDS3
DLCDAT_4_1RXOHI
RXHDLCDAT_3_1
STS1RXD_D3_1
SIGNAL NAME
SSE_POS
ND_1
FP_1
OO
I/O
IO
O
O
O
CMOS
CMOS
TTL/
CMOS
CMOS
CMOS
CMOS
TYPE
Receive STS-1 Telecom Bus - Channel 1 - Output Data Bus pin number
3:
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
STS1RXD_D3_1
This output pin along with STS1RXD_D_1[7:4] and STS1RXD_D_1[2:0]
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_3_1 (Receive HDLC block data output - Channel 1 -
Output Data Bus pin 3)
SSE_POS (Slow Speed Interface Data Positive for Egress Path)
Receive STS-1 Telecom Bus - Channel 1 - Output Data Bus pin num-
ber 4:
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 4:
STS1RXD_D4_1
This output pin along with STS1RXD_D_1[7:5] and STS1RXD_D_1[3:0]
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_4_1 (Receive HDLC block data output - Channel 1 -
Output Data Bus pin 4)
RXOHIND_1 (Receive Overhead Indicator - Channel 1)
Receive STS-1 Telecom Bus - Channel 1 - Output Data Bus pin number
5:
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 5:
STS1RXD_D5_1
This output pin along with STS1RXD_D_1[7:6] and STS1RXD_D_1[4:0]
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_5_1 (Receive HDLC block data output - Channel 1 -
Output Data Bus pin 5)
RXDS3FP_1 (Receive DS3 frame pulse - Channel 1)
- STS-1 Receive Telecom Bus - Output Data bus pin number 3:
78
DESCRIPTION
REV. 1.0.1