DS21554L+ Maxim Integrated Products, DS21554L+ Datasheet - Page 78
DS21554L+
Manufacturer Part Number
DS21554L+
Description
IC TXRX E1 1-CHIP 5V 100-LQFP
Manufacturer
Maxim Integrated Products
Datasheet
1.DS2154LNA2.pdf
(124 pages)
Specifications of DS21554L+
Function
Single-Chip Transceiver
Interface
E1, HDLC, J1, T1
Number Of Circuits
1
Voltage - Supply
4.75 V ~ 5.25 V
Current - Supply
75mA
Operating Temperature
0°C ~ 70°C
Mounting Type
Surface Mount
Package / Case
100-LQFP
Includes
Remote and AIS Alarm Detector / Generator
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Power (watts)
-
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RDC1: RECEIVE HDLC DS0 CONTROL REGISTER 1 (Address = B8 Hex)
RDC2: RECEIVE HDLC DS0 CONTROL REGISTER 2 (Address = B9 Hex)
SYMBOL
SYMBOL
(MSB)
(MSB)
RDS0M
RDB8
RSaDS
RHS
RDB8
RDB7
RDB6
RDB5
RDB4
RDB3
RDB2
RDB1
RHS
RD4
RD3
RD2
RD1
RD0
RSaDS
POSITION
POSITION
RDB7
RDC1.7
RDC1.6
RDC1.5
RDC1.4
RDC1.3
RDC1.2
RDC1.1
RDC1.0
RDC2.7
RDC2.6
RDC2.5
RDC2.4
RDC2.3
RDC2.2
RDC2.1
RDC2.0
RDS0M
RDB6
Receive HDLC source
0 = Sa bits defined by RCR2.3 to RCR2.7.
1 = Sa bits or DS0 channels defined by RDC1 (see bits defined below).
Receive Sa Bit/DS0 Select.
0 = route Sa bits to the HDLC controller. RD0 to RD4 defines which Sa
bits are to be routed. RD4 corresponds to Sa4, RD3 to Sa5, RD2 to Sa6,
RD1 to Sa7 and RD0 to Sa8.
1 = route DS0 channels into the HDLC controller. RDC1.5 is used to
determine how the DS0 channels are selected.
DS0 Selection Mode.
0 = utilize the RD0 to RD4 bits to select which single DS0 channel to use.
1 = utilize the RCHBLK control registers to select which DS0 channels to
use.
DS0 Channel Select Bit 4. MSB of the DS0 channel select.
DS0 Channel Select Bit 3.
DS0 Channel Select Bit 2.
DS0 Channel Select Bit 1.
DS0 Channel Select Bit 0. LSB of the DS0 channel select.
DS0 Bit 8 Suppress Enable. MSB of the DS0. Set to one to stop this bit
from being used.
DS0 Bit 7 Suppress Enable. Set to one to stop this bit from being used.
DS0 Bit 6 Suppress Enable. Set to one to stop this bit from being used.
DS0 Bit 5 Suppress Enable. Set to one to stop this bit from being used.
DS0 Bit 4 Suppress Enable. Set to one to stop this bit from being used.
DS0 Bit 3 Suppress Enable. Set to one to stop this bit from being used.
DS0 Bit 2 Suppress Enable. Set to one to stop this bit from being used.
DS0 Bit 1 Suppress Enable. LSB of the DS0. Set to one to stop this bit
from being used.
RDB5
RD4
78 of 124
NAME AND DESCRIPTION
NAME AND DESCRIPTION
RDB4
RD3
RDB3
RD2
RDB2
RD1
(LSB)
(LSB)
RDB1
RD0
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