DS2155LB Maxim Integrated, DS2155LB Datasheet - Page 4

• Manufacturer Part Number: DS2155LB
• Description: Network Controller & Processor ICs
• Manufacturer: Maxim Integrated

23.
24.
25.
26.
27.
28.
22.1
22.2
22.3
23.1
23.2
23.3
23.4
23.5
23.6
24.1
24.2
24.3
24.4
24.5
24.6
24.7
24.8
24.9
26.1
26.2
26.3
26.4
26.5
26.6
27.1
23.2.1
23.3.1
23.3.2
23.3.3
23.3.4
23.3.5
23.5.1
23.5.2
23.5.3
24.2.1
24.2.2
24.2.3
24.3.1
24.3.2
24.3.3
24.3.4
27.1.1
HDLC CONTROLLERS ........................................................................................................................126
LINE INTERFACE UNIT (LIU) ...........................................................................................................143
PROGRAMMABLE IN-BAND LOOP CODE GENERATION AND DETECTION......................163
BERT FUNCTION ..................................................................................................................................170
PAYLOAD ERROR-INSERTION FUNCTION (T1 MODE ONLY)................................................180
INTERLEAVED PCM BUS OPERATION (IBO) ...............................................................................184
M
M
M
B
HDLC C
HDLC M
R
L
D4/SLC-96 O
LIU O
R
T
MCLK P
J
CMI (C
LIU C
R
C
S
M
BERT R
BERT R
BERT B
BERT E
N
ITTER
TATUS
EGACY
RANSMITTER
ASIC
ECEIVE
ECEIVER
ECOMMENDED
OMPONENT
UMBER
ETHOD
ETHOD
ETHOD
APPING
FIFO Control....................................................................................................................................130
Receive ..............................................................................................................................................131
Transmit ............................................................................................................................................133
FIFO Information .............................................................................................................................138
Receive Packet-Bytes Available........................................................................................................138
HDLC FIFOs ....................................................................................................................................139
Overview ...........................................................................................................................................140
Receive Section .................................................................................................................................140
Transmit Section ...............................................................................................................................142
Receive Level Indicator and Threshold Interrupt .............................................................................144
Receive G.703 Synchronization Signal (E1 Mode)...........................................................................144
Monitor Mode ...................................................................................................................................144
Transmit Short-Circuit Detector/Limiter ..........................................................................................145
Transmit Open-Circuit Detector.......................................................................................................145
Transmit BPV Error Insertion ..........................................................................................................145
Transmit G.703 Synchronization Signal (E1 Mode).........................................................................145
Number-of-Errors Left Register........................................................................................................183
ONTROL
PERATION
O
A
ODE
..................................................................................................................................................170
RROR
PERATION
EGISTER
EPETITIVE
IT
ONFIGURATION
FDL S
TTENUATOR
-
RESCALER
HDLC C
1: H
2: I
3: I
APPING
OF
...............................................................................................................................................170
..............................................................................................................................................143
C
-E
M
OUNTER
NTERNAL
NTERNAL
S
ARDWARE
PERATION
C
ARK
PECIFICATIONS
RRORS
.......................................................................................................................................145
R
UPPORT
OUNTER
C
EGISTERS
....................................................................................................................................131
....................................................................................................................................143
D
ODE
IRCUITS
D
ESCRIPTIONS
P
I
...............................................................................................................................146
NVERSION
ATTERN
ETAILS
.............................................................................................................................146
.............................................................................................................................177
R
R
R
E
EGISTERS
(T1 M
........................................................................................................................126
........................................................................................................................142
........................................................................................................................178
S
EGISTER
EGISTER
XAMPLE
CHEME
.....................................................................................................................147
.....................................................................................................................156
..................................................................................................................126
S
...............................................................................................................158
ODE
) O
ET
...........................................................................................................172
..........................................................................................................140
..........................................................................................................176
..........................................................................................................182
S
S
.........................................................................................................113
PTION
)......................................................................................................140
CHEME
CHEME
...............................................................................................146
B
B
4 of 238
ASED ON
ASED ON
D
CRC4 M
OUBLE
-F
ULTIFRAME
RAME
..............................................113
........................................116