XRT75R12DIB-F Exar Corporation, XRT75R12DIB-F Datasheet - Page 64

• Manufacturer Part Number: XRT75R12DIB-F
• Description: Peripheral Drivers & Components (PCIs) 12 Channel 3.3V-5V temp -45 to 85C
• Manufacturer: Exar Corporation

Specifications of XRT75R12DIB-F

• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Mounting Style: SMD/SMT
• Operating Supply Voltage: 3.3 V to 5 V
• Package / Case: TBGA-420
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

XRT75R12D
TWELVE CHANNEL E3/DS3/STS-1 LINE INTERFACE UNIT WITH SONET DESYNCHRONIZER
N
N
UMBER
UMBER
Reserved
Reserved
B
7,6
B
7,6
5
4
3
2
1
0
5
4
3
2
1
0
B
B
IT
IT
IT
IT
T
ABLE
T
7
7
ABLE
TxON Ch 10
TxON Ch 11
RxON Ch 5
RxON Ch 4
RxON Ch 3
RxON Ch 2
RxON Ch 1
RxON Ch 0
TxON Ch 9
TxON Ch 8
TxON Ch 7
TxON Ch 6
Reserved
Reserved
21: APS/R
N
N
20: APS/R
AME
AME
Reserved
Reserved
B
B
IT
IT
6
6
EDUNDANCY
T
T
EDUNDANCY
R/W
R/W
YPE
YPE
TxON Ch 11
RxON Ch 5
B
B
R/W
Receive Section ON - Channel n
This READ/WRITE bit-field is used to turn on or turn off the Receiver associated with
Channel n on a per channel basis. If the user turns on the Receiver, then Channel n
will Receive DS3, E3 or STS-1 pulses on the line via the RTIP_n and RRING_ n input
pins.
Conversely, if the user turns off the Receiver Driver (for channel n), the RTIP_n and
RRING_n input pins will be in a high impedance state.
0 - Shuts off the Receive Driver associated with Channel n and puts the RTIP_n and
RRING_ n input pins in a high impedance state.
1 - Turns on the Receive Driver associated with Channel n.
R/W
Transmit Section ON - Channel n
This READ/WRITE bit-field is used to turn on or turn off the Transmit Driver associated
with Channel n. If the user turns on the Transmit Driver, then Channel n will transmit
DS3, E3 or STS-1 pulses on the line via the TTIP_n and TRING_ n output pins.
Conversely, if the user turns off the Transmit Driver, then the TTIP_n and TRING_n
output pins will be tri-stated.
0 - Shuts off the Transmit Driver associated with Channel n and tri-states the TTIP_n
and TRING_ n output pins.
1 - Turns on the Transmit Driver associated with Channel n.
N
IT
IT
OTE
5
5
T
: The master TxON control pin(pin # P4) must be in a high state (logic 1) for this
RANSMIT
R
ECIEVE
operation to turn on any channel.
TxON Ch 10
RxON Ch 4
B
B
R/W
C
R/W
C
IT
IT
ONTROL
ONTROL
4
4
60
R
R
RxON Ch 3
TxON Ch 9
EGISTER
EGISTER
B
B
R/W
R/W
IT
IT
3
3
D
D
- CR128 (A
- CR8 (A
ESCRIPTION
ESCRIPTION
RxON Ch 2
TxON Ch 8
B
B
R/W
R/W
IT
IT
DDRESS
2
2
DDRESS
L
RxON Ch 1
TxON Ch 7
OCATION
L
B
OCATION
B
R/W
R/W
IT
IT
1
1
= 0
= 0
X
RxON Ch 0
TxON Ch 6
08)
X
REV. 1.0.3
80)
B
B
R/W
R/W
IT
IT
0
0