xrt94l33 Exar Corporation, xrt94l33 Datasheet - Page 60

• 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.
D13
E13
A12
TXHDLCDAT_2_0
TXHDLCDAT_3_0
TXHDLCDAT_4_0
TXCELLTXED_0
TXDS3OHIND_0
STS1TXA_D2_0
STS1TXA_D3_0
STS1TXA_D4_0
SSI_CLK
3-CHANNEL DS3/E3/STS-1 TO STS-3/STM-1 MAPPER IC DATA SHEET
I/O
IO
I
TTL/CMOS
TTL/CMOS
TTL/CMOS
Transmit STS-1 Telecom Bus – Channel 0 – Input Data
Bus pin number 2:
The exact function of this 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 Transmit Telecom Bus – Input Data Bus pin number 2:
STS1TXA_D2_0
This
“STS1TXA_D_0[1:0] function as the “STS-1 Transmit (Add)
Telecom Bus – Input Data Bus for Channel 0. The STS-1
Telecom Bus interface will sample and latch this pin upon the
falling edge of “STS1TXA_CK_0”.
TXHDLCDAT_2_0 (Transmit HDLC block data – Channel 0
– Input data pin 2)
TXCELLTXED_0 (Cell Transmitted – Channel 0)
Transmit STS-1 Telecom Bus – Channel 0 – Input Data
Bus pin number 3:
The exact function of this 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 Transmit Telecom Bus – Input Data Bus pin number 2:
STS1TXA_D3_0:
This
“STS1TXA_D_0[2:0] function as the “STS-1 Transmit (Add)
Telecom Bus – Input Data Bus for Channel 0. The STS-1
Telecom Bus interface will sample and latch this pin upon the
falling edge of “STS1TXA_CK_0”.
TXHDLCDAT_3_0 (Transmit HDLC block data – Channel 0
– Input data pin 3
SSI_CLK (Slow Speed Interface for Ingress Path Clock)
Transmit STS-1 Telecom Bus – Channel 0 – Input Data
Bus pin number 4:
The exact function of this 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 Transmit Telecom Bus – Input Data Bus pin number 4:
STS1TXA_D4_0:
This
“STS1TXA_D_0[3:0] function as the “STS-1 Transmit (Add)
Telecom Bus – Input Data Bus for Channel 0. The STS-1
Telecom Bus interface will sample and latch this pin upon the
falling edge of “STS1TXA_CK_0”.
TXHDLCDAT_4_0 (Transmit HDLC block data – Channel 0
– Input data pin 4)
TXDS3OHIND_0 (Transmit DS3 Overhead Indicator –
Channel 0)
60
input
input
input
pin
pin
pin
along
along
along
with
with
with
“STS1TXA_D_0[7:3]”
“STS1TXA_D_0[7:4]”
“STS1TXA_D_0[7:5]”
xr
and
and
and