XRT75R12DIB-F Exar Corporation, XRT75R12DIB-F Datasheet - Page 85

• 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

REV. 1.0.3
C
B
HANNEL
IT
N
UMBER
4
3
2
C
TWELVE CHANNEL E3/DS3/STS-1 LINE INTERFACE UNIT WITH SONET DESYNCHRONIZER
ONTROL
R
RLB_n
LLB_n
N
E3_n
EGISTER
AME
- C
HANNEL N
T
R/W
R/W
R/W
YPE
Loop-Back Select - RLB Bit - Channel_n:
This READ/WRITE bit-field along with the corresponding LLB_n bit-field is
used to configure a given channel into various loop-back modes ass shown
by the following table.
Loop-Back Select - LLB Bit-field - Channel_n:
See the table (above) for RLB_n.
E3 Mode Select - Channel_n:
This READ/WRITE bit-field, along with Bit 1 (STS-1/DS3_n) within this reg-
ister, is used to configure a given channel into either the DS3, E3 or STS-1
Modes.
0 - Configures Channel_n to operate in either the DS3 or STS-1 Modes,
depending upon the state of Bit 1 (STS-1/DS3_n) within this same register.
1- Configures Channel_n to operate in the E3 Mode.
A
DDRESS
LLB_n
L
0
0
1
1
81
OCATION
RLB_n
= 0
0
1
0
1
XM
6 (
D
ESCRIPTION
M
Analog Local Loop-back Mode
Digital Local Loop-back Mode
Norm al (No Loop-back) Mode
= 0-5 & 8-D)
Rem ote Loop-back Mode
Loop-back M ode
XRT75R12D