XRT94L31IB Exar Corporation, XRT94L31IB Datasheet - Page 71

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

Specifications of XRT94L31IB

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

REV. 1.0.1
PIN DESCRIPTION OF THE XRT94L31 (REV. B)
PIN #
A21
H24
STS1RXD_CK_0
STS1RXD_CK_1
RXVALIDFCS_0
RXVALIDFCS_1
SIGNAL NAME
RXGFCCLK_0
RXGFCCLK_1
TxP_STPA
STS-1 TELECOM BUS INTERFACE - RECEIVE DIRECTION
I/O
O
O
CMOS
CMOS
TYPE
Receive STS-1/STS-3 Telecom Bus Clock Output - Channel 0;
The function of this input pin depends upon whether or not the STS-1
Telecom Bus Interface associated with Channel 0 is enabled.
If STS-1 Telecom Bus (Channel 0) has been enabled -
STS-1 Receive Telecom Bus Clock Output - Channel
0;STS1RXD_CK_0:
All signals, which are output via the Receive Telecom Bus - Channel 0
are clocked out upon the rising edge of this clock signal. This includes
the following signals.
•
•
•
•
•
This clock signal will operate at 19.44MHz (For STS-3 mode) or
6.48MHz (Fro STS-1 mode)
RXVALIDFCS_0 (Receive HDLC block valid FCS Indicator - Channel
0)
RXGFCCLK_0 (Receive ATM GFC clock signal - Channel 0)
Receive STS-1 Telecom Bus Clock Output - Channel 1;
The function of this input 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 Clock Output - Channel 1;
STS1RXD_CK_1:
All signals, which are output via the Receive Telecom Bus - Channel 1
are clocked out upon the rising edge of this clock signal. This includes
the following signals.
•
•
•
•
•
This clock signal will operate at 19.44MHz. (For STS-3 mode) or
6.48MHz (Fro STS-1 mode)
RXVALIDFCS_1 (Receive HDLC block valid FCS Indicator - Channel
1)
RXGFCCLK_1 (Receive ATM GFC clock signal - Channel 1)
TxP_STPA (Transmit PPP Level 2 Selected Channel Packet Avail-
able)
STS1RXD_D_0[7:0]
STS1RXD_ALARM_0
STS1RXD_DP_0
STS1RXD_PL_0
STS1RXD_C1J1_0
STS1RXD_D_1[7:0]
STS1RXD_ALARM_1
STS1RXD_DP_1
STS1RXD_PL_1
STS1RXD_C1J1_1
3-CHANNEL DS3/E3/STS-1 TO STS-3/STM-1 MAPPER IC
71
DESCRIPTION
XRT94L31