ds2149qt-r Maxim Integrated Products, Inc., ds2149qt-r Datasheet - Page 5
ds2149qt-r
Manufacturer Part Number
ds2149qt-r
Description
Ds2149 5v T1/j1 Line Interface Unit
Manufacturer
Maxim Integrated Products, Inc.
Datasheet
1.DS2149QT-R.pdf
(32 pages)
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2. OPERATING MODES
The DS2149 has several pins with multiple functions and names according to the selected operating
mode. These operating modes are summarized in the tables below.
Table 2-A. Operating Modes
Control pins are affected by serial port and hardware modes.
Table 2-B. Control Pins for Hardware and Software Modes
PIN
PIN
13
16
19
20
11
12
23
24
25
17
18
26
27
28
1
2
3
4
6
7
8
5
9
BIPOLAR
RNEG
TNEG
TPOS
RPOS
TAIS
NRZ
RCL
RLB
LLB
HARDWARE MODE
QRSS DISABLED
MODE1
MODE0
NLOOP
JASEL
L0
L1
L2
L3
RCL/QPD
INSBPV
RDATA
TDATA
QRSS
QRSS
NRZ
NLB
ALB
BPV
TRING
RRING
MCLK
RCLK
TCLK
RTIP
TTIP
5 of 32
BIPOLAR
RNEG
RPOS
NRZ
SERIAL PORT MODE
RCL
QRSS ENABLED
INSBPV
INSLER
MODE1
MODE0
NLOOP
CLKE
SCLK
SDO
N.C.
N.C.
INT
SDI
CS
RCL/QPD
RDATA
QRSS
NRZ
BPV
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