BH-ADP-ISO-20 Просмотр технического описания (PDF) - Unspecified
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BH-ADP-ISO-20 Datasheet PDF : 3 Pages
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1 14 and 20-pin Configurations
The Isolation Adapters described below (see figures 1 to 4) allow an emu-
lator with the standard TI 14-pin or compact 20-pin JTAG socket (EMU) to
connect to a target board with the corresponding JTAG header (TGT).
Use a pin converter if your emulator and target board do not have the
same JTAG connections.
Use of this adapter will isolate floating grounds and minimize current
spikes from damaging the emulator, the target, and the development ma-
chine.
Typical Connections 2
Using this adapter provides backwards compatibility to standard debug con-
nections and does not perform any processing or contain any on-board logic.
It is strictly a Isolation Adapter, routing only pins 1-14, or 1-20 on relative
adapter, and can be used with XDS510™ and XDS560™-class emulators
with a 14-pin or 20-pin socket connector.
Figure 5 shows the connection orientation of the Isolation Adapter between
an emulator cable on top and a header on a target board.
Figure 1
Top view of BH-ADP-ISO14
Figure 2
Top view of BH-ADP-ISO20
Emulator
Connector
Standard TI 14-pin
JTAG Header
Connect to emulator’s
14-pin socket connector.
(EMU)
(pin 6 keyed)
(TGT)
Standard TI 14-pin
JTAG Socket
Connect this end to target
board with TI 14-pin header.
Figure 3
Connector edge views of the BH-ADP-ISO14 Adapter
Target
Connector
SIDE VIEW
Emulator Cable
Isolation Adapter
Target Board
Connection
Compact TI 20-pin
JTAG Header
Connect to emulator’s
20-pin socket connector.
(EMU)
(pin 6 keyed)
(TGT)
Compact TI 20-pin
JTAG connector
Connect this end to target
board with 20-pin TI header.
Figure 4
Connector edge views of the BH-ADP-ISO20 Adapter
2
Figure 5
Side view of the Isolation adapter connection orientation
WARNING
Caution should be exercised in connecting these adapters to the JTAG emulator and
the target JTAG header. Pay special attention to the orientation and keying and pin
outs. Be careful to connect with the correct orientation. These adapters are not in-
tended to be hot pluggable. Unplug power from all sources prior to connect or discon-
nect.
3
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