ds265188-port-t1-e1-j1-transc Maxim Integrated Products, Inc., ds265188-port-t1-e1-j1-transc Datasheet - Page 249
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ds265188-port-t1-e1-j1-transc
Manufacturer Part Number
ds265188-port-t1-e1-j1-transc
Description
Ds26518 8-port T1/e1/j1 Transceiver
Manufacturer
Maxim Integrated Products, Inc.
Datasheet
1.DS265188-PORT-T1-E1-J1-TRANSC.pdf
(313 pages)
- Current page: 249 of 313
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Register Name:
Register Description:
Register Address:
Bit #
Name
Default
Bits 2 to 0: Receive Impedance Selection (RIMPM[2:0]). These bits are used to select the receive impedance
termination. They must be set according to the cable impedance even if internal termination resistance is disabled
(RIMPON = 0). See
Table 10-21. Receive Impedance Selection
Bit 6: Receive Internal Impedance Match On (RIMPON)
RIMPON
0
0
0
0
1
1
1
1
1
1
1
1
0 =
1 =
Receive internal impedance termination is disabled (high impedance).
Receive internal impedance termination is enabled.
—
7
0
RIMPRM[2:0]
Table
000
001
010
011
100
101
110
111
x00
x01
x10
x11
LRISMR
LIU Receive Impedance and Sensitivity Monitor Register
1007h + (20h x (n - 1)) : where n = 1 to 8
10-21.
RIMPON
6
0
100 Ω external termination (no internal impedance match)
110 Ω external termination (no internal impedance match)
120 Ω external termination (no internal impedance match)
75 Ω external termination (no internal impedance match)
—
5
0
RECEIVE IMPEDANCE SELECTED ( Ω )
249 of 313
100 Ω , with external 120 Ω resistor
110 Ω , with external 120 Ω resistor
120 Ω , with external 120 Ω resistor
75 Ω , with external 120 Ω resistor
—
4
0
100 Ω internal termination
110 Ω internal termination
120 Ω internal termination
75 Ω internal termination
—
3
0
DS26518 8-Port T1/E1/J1 Transceiver
RIMPM2
2
0
RIMPM1
1
0
RIMPM0
0
0
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