DS26519DK
16-Port T1/E1/J1 Transceiver
Demo Kit
www.maxim-ic.com
GENERAL DESCRIPTION
The DS26519DK is an easy-to-use evaluation board
for the DS26519 16-port T1/E1/J1 transceiver. The
DS26519DK is a stand-alone system. The board
comes complete with a transceiver, transformers,
termination resistors, configuration jumpers, network
connectors, processor, RS-232 interface, and power
adapter. Dallas’ ChipView software gives point-and-
click access to configuration and status registers
from a Windows®-based PC. On-board LEDs
support GPIO pins to indicate status, and FPGAs
provide for multiple clock and signal routing
configurations.
Windows is a registered trademark of Microsoft Corp.
FEATURES
Demonstrates Key Functions of DS26519
T1/E1/J1 SCT
Network Connectors, Transformers, and
Termination Ease Connectivity
Careful Layout Provides Signal Integrity
On-Board Processor and ChipView Software
Provide Point-and-Click Access to the
DS26519 Register Set
Software-Controlled (Register Mapped)
Configuration Switches Facilitate Clock and
Signal Routing
All System-Side Framer Pins are Easily
Accessible for External Data Source/Sink
LEDs Programmed via GPIO Pins Provide
Status
Easy-to-Read Silkscreen Labels Identify the
Signals Associated with All Connectors,
Jumpers, and LEDs
DEMO KIT CONTENTS
DS26519DK Board
CD_ROM Including:
ChipView Software
DS26519 Definition Files
DS26519DK Definition File
DS26519DK Data Sheet
DS26519 Data Sheet
ORDERING INFORMATION
PART
DS26519DK
DESCRIPTION
Demo kit for DS26519
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REV: 032607
DS26519DK
TABLE OF CONTENTS
1.
2.
3.
4.
5.
6.
7.
8.
9.
9.1
9.2
9.3
BOARD FLOORPLAN........................................................................................................3
CLOCK JUMPERS .............................................................................................................4
LINE-SIDE CONNECTIONS ...............................................................................................4
SYSTEM CONNECTORS...................................................................................................4
MICROCONTROLLER .......................................................................................................4
POWER-SUPPLY CONNECTORS.....................................................................................4
CONNECTING TO A COMPUTER .....................................................................................4
INSTALLING AND RUNNING THE SOFTWARE...............................................................5
ADDRESS MAP..................................................................................................................6
FPGA R
EGISTER
M
AP
.................................................................................................................... 6
ID R
EGISTERS
................................................................................................................................ 8
C
ONTROL
R
EGISTERS
..................................................................................................................... 9
10.
ADDITIONAL INFORMATION/RESOURCES ..................................................................15
DS26519 I
NFORMATION
............................................................................................................. 15
DS26519DK I
NFORMATION
........................................................................................................ 15
T
ECHNICAL
S
UPPORT
................................................................................................................. 15
10.1
10.2
10.3
11.
12.
COMPONENT LIST ..........................................................................................................16
SCHEMATICS ..................................................................................................................18
LIST OF FIGURES
Figure 1-1. DS26519DK Board Floorplan.................................................................................................................... 3
LIST OF TABLES
Table 9-1. Address Map .............................................................................................................................................. 6
Table 9-2. FPGA Register Map for FPGA 0 (U2) ........................................................................................................ 6
Table 9-3. FPGA Register Map for FPGA 1 (U12) ...................................................................................................... 7
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DS26519DK
1.
BOARD FLOORPLAN
Figure 1 shows the floor plan of the DS26519DK. The DS26519 is near the center of the board. The network
connections are provided on the right side of the board, which includes transformers and stacked RJ48 connectors.
Toward the center of the board are two FPGAs that provide muxes for control of system-side connections via
memory-mapped registers. Above and below the DS26519 are headers that provide access to all system-side
signals. The GPIO circuits next to the system connectors provide an interface to the GPIO pins via a header and an
LED for each GPIO. The power-supply connections, microprocessor, and JTAG connection are all in the top left
quadrant of the board. The power-supply section has three banana jacks for 3.3V, ground, and programming (used
at the factory). The bottom left quadrant of the board houses a serial port connector for interface to a computer and
clock distribution circuitry.
Figure 1-1. DS26519DK Board Floorplan
3.3V Jack
J
T
A
G
GPIO Circuits (1-8)
GND Jack
System Connectors (1-8)
Processor
FPGA
1-8
`
DS26519
Oscillators
FPGA
9-16
Transformers
RS232
System Connectors (9-16)
GPIO Circuits (9-16)
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Network Connections (x8)
Network Connections (x8)
PROG Jack
DS26519DK
2.
CLOCK JUMPERS
Jumpers JMP68 and JMP70 (middle left of board) select the main clock source for ports 1–8 and ports 9–16,
respectively. The source can be external via JMP67 (ports 1–8) or JMP69 (ports 9–16) or on-board oscillators Y2
(ports 1–8) and Y3 (ports 9–16). Oscillators Y4 and Y5 are auxiliary oscillators for ports 1–8 and ports 9–16,
respectively. The clock sources are muxed to the DS26519DK oscillators via FPGAs (see the
ADDRESS MAP
section for details).
3.
LINE-SIDE CONNECTIONS
The DS26519DK provides four octal transformers, two stacked RJ48 connectors, and test points to support all 16
ports. The test points are clearly labeled on both sides of the transformers with port numbers.
4.
SYSTEM CONNECTORS
System-side signals can be accessed from 16 headers. The headers are clearly labeled with port and signal
information.
5.
MICROCONTROLLER
The microcontroller has factory-installed firmware in on-chip nonvolatile memory. This firmware translates memory
access requests from the RS-232 serial port into register accesses on the DS26519 and the FPGAs.
6.
POWER-SUPPLY CONNECTORS
Connect a 3.3V power supply across the red J2 and black J4 (GND) banana jacks for normal operation. Banana
jack J3 is used by the factory for application of programming voltage for the microcontroller. Diodes D1 and D2
provide protection against power connection reversal. The LED DS1 provides indications that a 3.3V supply is
connected properly. The 3.3V supply is regulated to supply proper voltages to various circuits on the board.
7.
CONNECTING TO A COMPUTER
Connect a standard DB-9 serial cable between the serial port on the DS26519DK and an available serial port on
the host computer. The host computer must be a Windows-based PC. Be sure the cable is a standard straight-
through cable rather than a null-modem cable. Null-modem cables prevent proper operation.
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DS26519DK
8.
INSTALLING AND RUNNING THE SOFTWARE
ChipView is a general-purpose program that supports a number of Dallas Semiconductor demo kits. To install the
ChipView software, run SETUP.EXE from the disk included in the DS26519DK box or from the zip file
downloadable on our website at
www.maxim-ic.com/DS26519DK.
After installation, run the ChipView program with the DS26519DK board powered up and connected to the PC. If
the default installation options were used, one easy way to run ChipView is to click the
Start
button on the
Windows toolbar and select
Programs→ChipView→ChipView.
In the opening screen, click the
Register View
button. Select the correct serial port in the
Port Selection
dialog box, then click
OK.
Next, the
Definition File Assignment
window appears. This window has subwindows to select definition files for
up to four separate boards on other Dallas evaluation platforms. In the active subwindow, select the 26519T1.DEF
(or 26519E1.DEF) definition file from the list shown, or browse to find it in another directory. Press the
Continue
button.
After selecting the definition file, the main part of the ChipView window displays the DS26519’s register map. To
select a register, click on it in the register map. When a register is selected, the full name of the register and its bit
map are displayed at the bottom of the ChipView window. Bits that are logic 0 are displayed in white, while bits that
are logic 1 are displayed in green.
The ChipView software supports the following actions:
•
Toggle a bit.
Select the register in the register map and then click the bit in the bit map.
•
Write a register.
Select the register, click the
Write
button, and enter the value to be written.
•
Write all registers.
Click the
Write All
button and enter the value to be written.
•
Read a register.
Select the register in the register map and click the
Read
button.
•
Read all registers.
Click the
Read All
button.
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