xrt94l33 Exar Corporation, xrt94l33 Datasheet - Page 86

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

XRT94L33
Rev.1.2.0.
C16
B17
A18
RXHDLCDAT_3_0
RXHDLCDAT_4_0
RXHDLCDAT_5_0
STS1RXD_D3_0
STS1RXD_D4_0
STS1RXD_D5_0
RXOHIND_0
RXDS3FP_0
SSE_CLK
3-CHANNEL DS3/E3/STS-1 TO STS-3/STM-1 MAPPER IC DATA SHEET
IO
O
O
O
O
O
TTL/CMOS
CMOS
CMOS
CMOS
CMOS
CMOS
Receive STS-1 Telecom Bus – Channel 0 – 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 0
is enabled or not.
If STS-1 Telecom Bus (Channel 0) has been enabled –
STS-1 Receive Telecom Bus – Output Data bus pin number 3:
STS1RXD_D3_0
This output
“STS1RXD_D_0[2:0]” function as the “STS-1 Receive (Drop)
Telecom Bus – Output Data Bus for Channel 0. The STS-1
Telecom Bus Interface will update the data via this output
upon the rising edge of “STS1RXD_CK_0:.
RXHDLCDAT_3_0 (Receive HDLC block data output –
Channel 0 – Output Data Bus pin 3)
SSE_CLK (Slow Speed Clock Interface for Egress Path)
Receive STS-1 Telecom Bus – Channel 0 – 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 0
is enabled or not.
If STS-1 Telecom Bus (Channel 0) has been enabled –
STS-1 Receive Telecom Bus – Output Data bus pin number 4:
STS1RXD_D4_0
This output
“STS1RXD_D_0[3:0]” function as the “STS-1 Receive (Drop)
Telecom Bus – Output Data Bus for Channel 0. The STS-1
Telecom Bus Interface will update the data via this output
upon the rising edge of “STS1RXD_CK_0:.
RXHDLCDAT_4_0 (Receive HDLC block data output –
Channel 0 – Output Data Bus pin 4)
RXOHIND_0 (Receive Overhead Indicator – Channel 0)
Receive STS-1 Telecom Bus – Channel 0 – Output Data
Bus pin number 5:
The exact function of this output pin depends upon whether
the STS-1 Telecom Bus Interface, associated with Channel 0
is enabled or not.
If STS-1 Telecom Bus (Channel 0) has been enabled –
STS-1 Receive Telecom Bus – Output Data bus pin number 5:
STS1RXD_D5_0
This output
“STS1RXD_D_0[4:0]” function as the “STS-1 Receive (Drop)
Telecom Bus – Output Data Bus for Channel 0. The STS-1
Telecom Bus Interface will update the data via this output
upon the rising edge of “STS1RXD_CK_0:.
RXHDLCDAT_5_0 (Receive HDLC block data output –
Channel 0 – Output Data Bus pin 5)
RXDS3FP_0 (Receive DS3 frame pulse – Channel 0)
86
pin
pin
pin
along
along
along
with “STS1RXD_D_0[7:4]”
with “STS1RXD_D_0[7:5]”
with “STS1RXD_D_0[7:6]”
xr
and
and
and