ds2149qt-r Maxim Integrated Products, Inc., ds2149qt-r Datasheet - Page 5

• Manufacturer Part Number: ds2149qt-r
• Description: Ds2149 5v T1/j1 Line Interface Unit
• Manufacturer: Maxim Integrated Products, Inc.

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