Overview
The 14e-60t JTAG Emulation Adapter Board is
designed to allow targets containing Texas
Instruments' 60-pin Next Generation Emulation
Interface to be used with traditional fielded 14-pin
emulation hardware (e.g. XDS510 and XDS560). See
60-Pin Emulation Header Technical Reference
SPRU655A for more information.
Compatibility
This adapter is designed to be backwards compatible
with traditional 14-pin emulators and to support
common JTAG functions: TMS, TRST/, TDI, TVD,
TDO, TCKRTN, TCK, EMU0 and EMU1.
Mechanical Considerations
The new 14-pin emulator to 60-pin target adapter
board was designed using quality components and an
FR-4 base-laminate material suitable of supporting
most legacy board designs and speeds. Board
thickness was maintained at 0.0625" (customary for
current designs). The connectors chosen were based
on performance and life-cycle count. The adapter
board was designed for a character impedance of
approximately 50 ohm to reduce the mismatch with
typical target boards.
The following tables are provided for your assistance.
Table 1 specifies the pinout of the 14-pin (top)
emulator connector. Table 2 specifies the pinout of the
60-pin (bottom) target connector.
Table 1. 14-Pin JTAG Header Pinout
JTAG Emulation Adapter Board Kit 14e-60t
Quick Start Guide
Figure 1. JTAG Emulation Adapter Board
WARNING:
Please consult page 2 of this Quick Start Guide
regarding installation of the 14e-60t adapter. The
60-pin interface is not keyed and needs to be
correctly oriented for proper emulator operation.
Pin
1
3
5
7
9
6
13
Name
TMS
TDI
TVD
TDO
TCKRTN
TCLK
EMU0
Pin
2
4
6
8
10
12
14
Name
TRST/
TDIS
KEY
GND
GND
GND
EMU1
26993_spru814.qxd 7/8/2004 1:05 PM Page 1
Table 2. 60-Pin Header Pinout (14e-60t
Adapter only)
Key Notes / Concerns
Orientation
The 14e-60t adapter is designed with a keyed pin for
the classic 14-pin emulator header only (located on
pin 6). Use caution when inserting the 60-pin interface
to the target-interface board. If the 60-pin interface is
installed 180° incorrectly, damage can occur to the
target, adapter, and emulator. The adapter has specific
markings (silkscreen) intended to assist you in proper
installation. Be sure to align the adapter so that the
silk screen is oriented correctly. Two specific
markings are available for your assistance, DSP and
Cable Entry. Figure 2 illustrates the top view of the
adapter and respective silk screen markings.
Performance
Functionality and performance should always be a
consideration when designing and using an adapter.
For any critical signals, it is recommended that
simulation and modeling be performed. The use of an
adapter induces additional node lengths that may
increase signal reflections or crosstalk.
This 60-pin test adapter is not intended to be hot
pluggable, damage can occur! TVD, pin 5 on your
current JTAG header, is intended to provide a Target
Voltage Detect to the emulation system. Proper
configuration of this pin is mandatory. The use of any
adapter, alternate interface or incorrect connection to
this new header may dramatically affect the
performance of your system. Texas Instruments' next
generation emulation header requires the correct pin
out of all target board signals per Table 2.
Consequently, all emulator pod signals should be
wired in accordance with Table 1.
It is strongly recommended that the target interface
board be impedance matched and that the printed
circuit board traces have a co-planarity suitable for the
trace width and pitch. Choice of trace widths and
spacing should conform to good engineering practices
and be made compatible with current manufacturing
technologies (4/4, 4/3, or 3/3).
Pin
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
A
GND
GND
GND
GND
GND
GND
GND
N/C
GND
GND
GND
GND
GND
GND
N/C
B
N/C
TMS
N/C
TDI
N/C
N/C
TDO
TVD
N/C
N/C
N/C
TCLK
N/C
EMU0
N/C
C
N/C
N/C
TRST/
N/C
N/C
N/C
N/C
TCLKRTN
N/C
N/C
N/C
N/C
N/C
EMU1
N/C
D
N/C
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
Figure 2. 60-Pin Connector Silk Screen
Markings
CAUTION:
Texas Instruments Incorporated does not warrant
this product, your emulation tool(s), or target if your
adapter is installed incorrectly or the actual target
connector is incorrectly connected electrically. Pay
close attention to orientation and pin out.
26993_spru814.qxd 7/8/2004 1:05 PM Page 2
Basic JTAG functionality utilizing this adapter should
result in no apparent performance degradation. The
additional advanced features supported on the new 60-
pin interface connector and Next Generation Emulator
are not supported when using this adapter.
Damage
As with any component, damage can occur if the
adapter is mishandled, misused or forced into place.
Should your adapter become damaged for any reason,
Texas Instruments recommends the purchase of a new
adapter. Damaged adapters should be discarded to
prevent future use.
Upgrades
Upgrades to Texas Instruments' emulation adapters are
not planned. These adapters are provided for a limited
time until a sufficient amount of proper tools are
available to interface with the new emulation
connector.
Disclaimers
Read the following for important information to be
aware of:
•Successful use of Texas Instruments next genera-
tion emulation interface for HS-RTDX and trace
capture requires the use of good engineering
design practices when developing target interface
boards.
•Connector choice is extremely important, exces-
sive insertion and removal forces will reduce the
life of your interface. Follow the connector manu-
facturer's specifications for pad placement, layout
and processing. Failure to do so may result in the
shorting of connections, poor processing and
potential damage to your target or emulator / pod
assembly.
•Texas Instruments is not responsible for co-pla-
narity problems in manufacturing where connec-
tor assembly is concerned. Choose your printed
circuit board plating material wisely.
•Target board impedance mismatch and the results
of such a mismatch can be detrimental to the per-
formance of the emulation platform, amongst
other potential problems.
•Excessive capacitance loading due to long trace
lengths, added vias, connectors or test points
causes reduced performance and less than ade-
quate results. Minimize the capacitive loading on
every trace to and from the header.
Texas Instruments has taken into account a reasonable
amount of skew for its new emulation interface and
supporting new hardware. Excessive signal skew may
cause undesirable results. This is a costly correction
and usually requires the respin of a target board.
Spend the appropriate amount of time up front to
validate your design.
Logic (Schematic) Details
Figure 3 represents the logic design and pinout for the
14-pin target to 60-pin emulator adapter.
26993_spru814.qxd 7/8/2004 1:05 PM Page 3
Copyright © 2004 Texas Instruments Printed in U.S.A., June 2004
SPRU814
XDS-510 and XDS-560 are trademarks of Texas Instruments.
Figure 3. 14e-60t Schematic
26993_spru814.qxd 7/8/2004 1:05 PM Page 4
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