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DS21354/DS21554
3.3V/5V E1 Single-Chip Transceivers
www.maxim-ic.com
GENERAL DESCRIPTION
The DS21354/DS213554 single-chip transceivers
(SCTs) contain all the necessary functions to connect to
E1 lines. The devices are upward-compatible versions
of the DS2153 and DS2154 SCTs. The on-board
clock/data recovery circuitry coverts the AMI/HDB3 E1
waveforms to an NRZ serial stream. Both devices
automatically adjust to E1 22AWG (0.6mm) twisted-
pair cables from 0 to over 2km in length. They can
generate the necessary G.703 waveshapes for both 75W
coax and 120W twisted cables. The on-board jitter
attenuator (selectable to either 32 bits or 128 bits) can
be placed in either the transmit or receive data paths.
The framer locates the frame and multiframe
boundaries and monitors the data stream for alarms. It is
also used for extracting and inserting signaling data, Si,
and Sa-bit information. The on-board HDLC controller
can be used for Sa-bit links or DS0s. The devices
contain a set of internal registers that the user can
access to control the operation of the units. Quick
access through the parallel control port allows a single
controller to handle many E1 lines. The devices fully
meet all the latest E1 specifications, including ITU-T
G.703, G.704, G.706, G.823, G.732, and I.431, ETS
300 011, 300 233, and 300 166, as well as CTR12 and
CTR4.
§
§
§
§
§
§
§
§
§
§
§
§
§
§
§
FEATURES
Complete E1 (CEPT) PCM-30/ISDN-PRI
Transceiver Functionality
On-Board Long- and Short-Haul Line Interface
for Clock/Data Recovery and Waveshaping
32-Bit or 128-Bit Crystal-Less Jitter Attenuator
Frames to FAS, CAS, CCS, and CRC4 Formats
Integral HDLC Controller with 64-Byte Buffers
Configurable for Sa Bits, DS0, or Sub-DS0
Operation
Dual Two-Frame Elastic Store Slip Buffers that
can Connect to Asynchronous Backplanes up to
8.192MHz
Interleaving PCM Bus Operation
8-Bit Parallel Control Port that can be used
Directly
on
Either
Multiplexed
or
Nonmultiplexed Buses (Intel or Motorola)
Extracts and Inserts CAS Signaling
Detects and Generates Remote and AIS Alarms
Programmable Output Clocks for Fractional E1,
H0, and H12 Applications
Fully Independent Transmit and Receive
Functionality
Full Access to Si and Sa Bits Aligned with
CRC-4 Multiframe
Four Separate Loopback Functions for Testing
Functions
Large Counters for Bipolar and Code Violations,
CRC4 Codeword Errors, FAS Word Errors, and
E Bits
IEEE 1149.1 JTAG-Boundary Scan Architecture
Pin Compatible with DS2154/52/352/552 SCTs
3.3V (DS21354) or 5V (DS21554) Supply; Low-
Power CMOS
100-pin LQFP package (14mm x 14mm)
PART
DS21354L
TEMP RANGE
0°C to +70°C
-40°C to +85°C
0°C to +70°C
-40°C to +85°C
PIN-PACKAGE
100 LQFP
100 LQFP
100 LQFP
100 LQFP
PIN CONFIGURATION
TOP VIEW
Dallas
Semiconductor
DS21354/DS21554
§
§
§
§
ORDERING INFORMATION
100
1
DS21354LN
LQFP
DS21554L
DS21554LN
Note:
Some revisions of this device may incorporate deviations from published specifications known as errata. Multiple revisions of any device
may be simultaneously available through various sales channels. For information about device errata, click here:
www.maxim-ic.com/errata.
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REV: 021004
DS21354/DS21554 3.3V/5V E1 Single-Chip Transceivers
TABLE OF CONTENTS
1. INTRODUCTION.................................................................................................................. 6
1.1. F
UNCTIONAL
D
ESCRIPTION
..............................................................................................................................7
1.2. DOCUMENT REVISION HISTORY .............................................................................................................8
2. BLOCK DIAGRAM .............................................................................................................. 9
3. PIN DESCRIPTION............................................................................................................ 10
3.1. PIN FUNCTION DESCRIPTION ................................................................................................................14
3.1.1.
Transmit-Side Pins..............................................................................................................................14
3.1.2.
Receive-Side Pins...............................................................................................................................17
3.1.3.
Parallel Control Port Pins ....................................................................................................................20
3.1.4.
JTAG Test Access Port Pins...............................................................................................................22
3.1.5.
Interleave Bus Operation Pins ............................................................................................................22
3.1.6.
Line Interface Pins ..............................................................................................................................23
3.1.7.
Supply Pins .........................................................................................................................................24
4. PARALLEL PORT ............................................................................................................. 25
4.1. REGISTER MAP ........................................................................................................................................25
5. CONTROL, ID, AND TEST REGISTERS .......................................................................... 30
5.1.
5.2.
5.3.
5.4.
5.5.
5.6.
POWER-UP SEQUENCE ..........................................................................................................................30
SYNCHRONIZATION AND RESYNCHRONIZATION...............................................................................32
FRAMER LOOPBACK ...............................................................................................................................36
AUTOMATIC ALARM GENERATION........................................................................................................38
REMOTE LOOPBACK ...............................................................................................................................40
LOCAL LOOPBACK...................................................................................................................................40
6. STATUS AND INFORMATION REGISTERS .................................................................... 43
6.1. CRC4 SYNC COUNTER............................................................................................................................45
7. ERROR COUNT REGISTERS........................................................................................... 50
7.1.
7.2.
7.3.
7.4.
BPV OR CODE VIOLATION COUNTER ...................................................................................................50
CRC4 ERROR COUNTER.........................................................................................................................51
E-BIT COUNTER .......................................................................................................................................51
FAS E
RROR
C
OUNTER
.................................................................................................................................52
8. DS0 MONITORING FUNCTION ........................................................................................ 53
9. SIGNALING OPERATION................................................................................................. 56
9.1. PROCESSOR-BASED SIGNALING ..........................................................................................................56
9.2. HARDWARE-BASED SIGNALING ............................................................................................................58
9.2.1.
Receive Side .......................................................................................................................................58
9.2.2.
Transmit Side ......................................................................................................................................59
10. PER-CHANNEL CODE GENERATION AND LOOPBACK............................................... 60
10.1. TRANSMIT-SIDE CODE GENERATION ................................................................................................60
10.1.1. Simple Idle Code Insertion and Per-Channel Loopback.....................................................................60
10.1.2. Per-Channel Code Insertion ...............................................................................................................61
10.2. RECEIVE-SIDE CODE GENERATION...................................................................................................62
11. CLOCK BLOCKING REGISTERS..................................................................................... 63
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DS21354/DS21554 3.3V/5V E1 Single-Chip Transceivers
12. ELASTIC STORES OPERATION...................................................................................... 65
12.1. RECEIVE SIDE .......................................................................................................................................65
12.2. TRANSMIT SIDE.....................................................................................................................................65
13. ADDITIONAL (SA) AND INTERNATIONAL (SI) BIT OPERATION .................................. 66
13.1. HARDWARE SCHEME ...........................................................................................................................66
13.2. INTERNAL REGISTER SCHEME BASED ON DOUBLE FRAME .........................................................66
13.3. INTERNAL REGISTER SCHEME BASED ON CRC4 MULTIFRAME....................................................68
14. HDLC CONTROLLER FOR THE SA BITS OR DS0 ......................................................... 70
14.1. GENERAL OVERVIEW ...........................................................................................................................70
14.2. HDLC STATUS REGISTERS..................................................................................................................71
14.3. BASIC OPERATION DETAILS ...............................................................................................................72
14.3.1. Example: Receive an HDLC Message................................................................................................72
14.3.2. Example: Transmit an HDLC Message...............................................................................................72
14.4. HDLC REGISTER DESCRIPTION..........................................................................................................73
15. LINE INTERFACE FUNCTIONS........................................................................................ 80
15.1.
15.2.
15.3.
15.4.
15.5.
R
ECEIVE
C
LOCK AND
D
ATA
R
ECOVERY
.......................................................................................................81
T
RANSMIT
W
AVESHAPING AND
L
INE
D
RIVING
..............................................................................................81
J
ITTER
A
TTENUATOR
..................................................................................................................................82
P
ROTECTED
I
NTERFACES
...........................................................................................................................86
R
ECEIVE
M
ONITOR
M
ODE
..........................................................................................................................89
16. JTAG BOUNDARY SCAN ARCHITECTURE AND TEST ACCESS PORT...................... 90
16.1. I
NSTRUCTION
R
EGISTER
.............................................................................................................................95
16.2. T
EST
R
EGISTERS
.......................................................................................................................................96
17. INTERLEAVED PCM BUS OPERATION .......................................................................... 98
17.1. C
HANNEL
I
NTERLEAVE
...............................................................................................................................99
17.2. F
RAME
I
NTERLEAVE
...................................................................................................................................99
18. FUNCTIONAL TIMING DIAGRAMS................................................................................ 100
18.1. R
ECEIVE
.................................................................................................................................................100
18.2. T
RANSMIT
...............................................................................................................................................104
19. OPERATING PARAMETERS.......................................................................................... 111
20. AC TIMING PARAMETERS AND DIAGRAMS ............................................................... 112
20.1.
20.2.
20.3.
20.4.
M
ULTIPLEXED
B
US
AC C
HARACTERISTICS
................................................................................................112
N
ONMULTIPLEXED
B
US
AC C
HARACTERISTICS
..........................................................................................115
R
ECEIVE
-S
IDE
AC C
HARACTERISTICS
......................................................................................................117
T
RANSMIT
AC C
HARACTERISTICS
.............................................................................................................121
21. PACKAGE INFORMATION............................................................................................. 124
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DS21354/DS21554 3.3V/5V E1 Single-Chip Transceivers
LIST OF FIGURES
Figure 2-1. DS21354/554 Block Diagram
............................................................................................................................. 9
Figure 15-1. Basic External Analog Connections
.............................................................................................................. 83
Figure 15-2. Optional Crystal Connection...........................................................................................................................
83
Figure 15-3. Jitter Tolerance.................................................................................................................................................
84
Figure 15-4. Jitter Attenuation
.............................................................................................................................................. 84
Figure 15-5. Transmit Waveform Template
........................................................................................................................ 85
Figure 15-6. Protected Interface Example for the DS21554
............................................................................................ 87
Figure 15-7. Protected Interface Example for the DS21354
............................................................................................ 88
Figure 15-8. Typical Monitor Port Application
.................................................................................................................... 89
Figure 16-1. JTAG Functional Block Diagram....................................................................................................................
91
Figure 16-2. TAP Controller State Diagram........................................................................................................................
94
Figure 17-1. IBO Basic Configuration Using Four SCTs
.................................................................................................. 99
Figure 18-1. Receive-Side Timing......................................................................................................................................
100
Figure 18-2. Receive-Side Boundary Timing (with Elastic Store Disabled).................................................................
100
Figure 18-3. Receive-Side 1.544MHz Boundary Timing (with Elastic Store Enabled)
.............................................. 101
Figure 18-4. Receive-Side 2.048MHz Boundary Timing (with Elastic Store Enabled)
.............................................. 101
Figure 18-5. Receive-Side Interleave Bus Operation, Byte Mode
................................................................................ 102
Figure 18-6. Receive-Side Interleave Bus Operation, Frame Mode.............................................................................
103
Figure 18-7. Transmit-Side Timing
.................................................................................................................................... 104
Figure 18-8. Transmit-Side Boundary Timing (with Elastic Store Disabled)................................................................
104
Figure 18-9. Transmit-Side 1.544MHz Boundary Timing (with Elastic Store Enabled)
............................................. 105
Figure 18-10. Transmit-Side 2.048MHz Boundary Timing (with Elastic Store Enabled)
........................................... 105
Figure 18-11. Transmit-Side Interleave Bus Operation, Byte Mode
............................................................................. 106
Figure 18-12. Transmit-Side Interleave Bus Operation, Frame Mode..........................................................................
107
Figure 18-13. G.802 Timing
................................................................................................................................................ 108
Figure 18-14. DS21354/DS21554 Framer Synchronization Flowchart
........................................................................ 109
Figure 18-15. DS21354/DS21554 Transmit Data Flow
.................................................................................................. 110
Figure 20-1. Intel Bus Read Ac Timing (BTS = 0/MUX = 1)...........................................................................................
113
Figure 20-2. Intel Bus Write Timing (BTS = 0/MUX = 1).................................................................................................
113
Figure 20-3. Motorola Bus AC Timing (BTS = 1/MUX = 1)
............................................................................................ 114
Figure 20-4. Intel Bus Read AC Timing (BTS = 0/MUX = 0)..........................................................................................
115
Figure 20-5. Intel Bus Write AC Timing (BTS = 0/MUX = 0)
.......................................................................................... 116
Figure 20-6. Motorola Bus Read AC Timing (BTS = 1/MUX = 0)..................................................................................
116
Figure 20-7. Motorola Bus Write AC Timing (BTS = 1/MUX = 0)
.................................................................................. 116
Figure 20-8. Receive-Side AC Timing
............................................................................................................................... 118
Figure 20-9. Receive System Side AC Timing.................................................................................................................
119
Figure 20-10. Receive Line Interface AC Timing.............................................................................................................
120
Figure 20-11. Transmit-Side AC Timing............................................................................................................................
122
Figure 20-12. Transmit System Side AC Timing..............................................................................................................
123
Figure 20-13. Transmit Line Interface Side AC Timing...................................................................................................
123
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