XRT94L33IB-L Exar Corporation, XRT94L33IB-L Datasheet - Page 79

• Manufacturer Part Number: XRT94L33IB-L
• Description: IC MAPPER DS3/E3/STS-1 504TBGA
• Manufacturer: Exar Corporation

Specifications of XRT94L33IB-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

xr
3-CHANNEL DS3/E3/STS-1 TO STS-3/STM-1 MAPPER IC DATA SHEET
C17
STS1RXD_C1J1_0
TXDS3LINECLK_0
O
CMOS
STS-1 Receive Telecom Bus - C1/J1 Byte Phase Indicator
Output Signal – Channel 0:
The exact function of this output pin depends upon whether
the STS-1 Telecom Bus Interface for Channel 0 has been
enabled or not.
If STS-1 Telecom Bus (Channel 0) has been enabled –
STS-1 Receive Telecom Bus – C1/J1 Byte Phase Indicator
Output Signal:
This output pin pulses “high” under the following two
conditions.
Whenever
“STS1RXD_D_0[7:0]” output, and
Whenever
“STS1RXD_D_0[7:0]” output.
Notes:
1.
2.
TXDS3LINECLK_0 (Transmit DS3/E3/STS-1 line clock to
LIU – Channel 0)
79
The STS-1 Receive (Drop) Telecom Bus (associated with
Channel 0) will indicate that it is transmitting the C1 byte
(via the STS1RXD_D_0[7:0] output pins), by pulsing this
output pin “HIGH” (for one period of “STS1RXD_CK_0”)
and keeping the “STS1RXD_PL_0” output pin pulled
“LOW.
The STS-1 Receive (Drop) Telecom Bus (associated with
Channel 0) will indicate that it is transmitting the J1 byte
(via the STS1RXD_D_0[7:0] output pins), by pulsing this
output pin “HIGH” (for one period of “STS1RXD_CK_0”)
while the “STS1TXD_PL_0” output pin is pulled “HIGH”.
the
the
C1
J1
byte
byte
is
is
being
being
output
output
XRT94L33
via
via
Rev.1.2.0.
the
the