DS2149 MAXIM [Maxim Integrated Products], DS2149 Datasheet - Page 5

• Manufacturer Part Number: DS2149
• Description: 5V T1/J1 Line Interface Unit
• Manufacturer: MAXIM [Maxim Integrated Products]

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