DS26334DK Maxim Integrated Products, DS26334DK Datasheet - Page 57
DS26334DK
Manufacturer Part Number
DS26334DK
Description
KIT DESIGN FOR DS26334
Manufacturer
Maxim Integrated Products
Specifications of DS26334DK
Main Purpose
Telecom, Line Interface Units (LIUs)
Utilized Ic / Part
DS26334
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Secondary Attributes
-
Embedded
-
Primary Attributes
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
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Register Address (LIUs 9–16):
Bit #
Name
Default
Note: CALEN controls all 16 LIUs. All other bits are for LIUs 9–16 only.
Bit 7: Receive Impedance Mode Select (RIMPMS). When this bit is set, the fully internal receive impedance
matching mode is selected, so RTIP and RRING require no external resistor. If this bit is set, the receiver line
transformer must be a 1:1 turns ratio and the RTR bit set. When reset and TS.RIMPON = 1, partially internal
receive impedance matching mode is selected and an external resistor is required to terminate the receive line.
This external resistor will be adjusted internally to the correct termination value.
Bit 6: AIS Enable During Loss (AISEL). When this bit is set, an AIS is sent to the system side upon detecting
LOS for each channel. The individual LIU register
the
Bit 5: Short Circuit Protection Disable (SCPD). If this bit is set the short-circuit protection is disabled for all the
transmitters. The individual LIU register
register will have control.
Bit 4: Code (CODE). If this bit is set AMI encoder/decoder is selected. The
when this bit is set. If reset, the
Bit 3: Jitter Attenuator Depth Select (JADS). If this bit is set the jitter attenuator FIFO depth is 128 bits. The
settings in the
Bit 2: Calibrate Receive Impedance Match (CALEN). This bit must be set to enable calibration of the receive
termination. If this bit is set and a 16kΩ resistor is on the RESREF pin, then a low-to-high transition on the CRIMP
bit will initiate a calibration cycle for the receive internal termination. The user should wait at least 5µs before
setting the CRIMP bit.
Bit 1: Jitter Attenuator Position Select (JAPS). When the JAPS bit is set, the jitter attenuator will be in the
receive path for each channel. The individual LIU register
reset, the
Bit 0: Jitter Attenuator Enable (JAE). When this bit is set the jitter attenuator is enabled. The settings in the
register will be ignored if this register is set. If reset, the IJAE register will have control.
IAISEL
IJAPS
register will have control.
RIMPMS
IJAFDS
7
0
register will have control.
register will be ignored if this register is set. If reset the
AISEL
6
0
LCS
2Fh
register will have control.
SCPD
ISCPD
DS26334 3.3V, 16-Channel, E1/T1/J1 Short/Long-Haul Line Interface Unit
5
0
settings will be ignored when this bit is set. When reset, the
IAISEL
CODE
57 of 121
4
0
IJAPS
settings will be ignored when this bit is set. When reset,
settings will be ignored when this bit is set. When
JADS
3
0
CALEN
IJAFDS
LCS
2
0
register settings will be ignored
register will have control.
JAPS
1
0
JAE
0
0
ISCPD
IJAE
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