xrt94l33 Exar Corporation, xrt94l33 Datasheet - Page 93

• Manufacturer Part Number: xrt94l33
• Description: Multi-channel, Multi-function Device Aggregates 3 Ds3/e3/sts-1 Into Oc3/stm-1
• Manufacturer: Exar Corporation

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3-CHANNEL DS3/E3/STS-1 TO STS-3/STM-1 MAPPER IC DATA SHEET
AG10
AE12
RXHDLCDAT_3_2
RXHDLCDAT_4_2
STS1RXD_D3_2
STS1RXD_D4_2
RXOHIND_2
SSE_NEG
IO
O
O
O
O
TTL/CMOS
CMOS
CMOS
CMOS
CMOS
Receive STS-1 Telecom Bus – Channel 2 – Output Data
Bus pin number 3:
The exact function of this output pin depends upon whether
the STS-1 Telecom Bus Interface, associated with Channel 2
is enabled or not.
If STS-1 Telecom Bus (Channel 2) has been enabled –
STS-1 Receive Telecom Bus – Output Data bus pin number 3:
STS1RXD_D3_2
This output
“STS1RXD_D_2[2:0]” 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.
RXHDLCDAT_3_2 (Receive HDLC block data output –
Channel 2 – Output Data Bus pin 3)
SSE_NEG (Slow Speed Interface Data Negative for Egress
Path)
Receive STS-1 Telecom Bus – Channel 2 – Output Data
Bus pin number 4:
The exact function of this output pin depends upon whether
the STS-1 Telecom Bus Interface, associated with Channel 2
is enabled or not.
If STS-1 Telecom Bus (Channel 2) has been enabled –
STS-1 Receive Telecom Bus – Output Data bus pin number 4:
STS1RXD_D4_2
This output
“STS1RXD_D_2[3:0]” 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.
RXHDLCDAT_4_2 (Receive HDLC block data output –
Channel 2 – Output Data Bus pin 4)
RXOHIND_2 (Receive Overhead Indicator – Channel 2)
93
pin
pin
along
along
with “STS1RXD_D_2[7:4]”
with “STS1RXD_D_2[7:5]”
XRT94L33
Rev.1.2.0.
and
and