Ts-9441 Console Header; Ts-9441 Jtag Header; Power Supply Connector - Technologic Systems TS-7400 Hardware & Software Installation

6.5 TS-9441 Console Header

Note
The information on this section applies to the TS-9441 recovery/console peripheral
board for the TS-7400.
The console header brings out a serial port. Use the RC-DB9 connector to connect the
TS-7400/TS-9441 to a DB9 cable and to your PC running a terminal emulator.

6.6 TS-9441 JTAG Header

Note
The information on this section applies to the TS-9441 recovery/console peripheral
board for the TS-7400.
The JTAG header can be used to program the on-board CPLD using special software and
hardware support tools. However, it is not available for application debug purposes since
it has no connection to the EP9302 JTAG interface. The following table shows which pins
of the JTAG header are used for the JTAG interface signals:
1, 3, 5
10, 12
The JTAG header is also utilized for jumper configuration. See the Jumpers section of this
manual for more details.
Technologic Systems has made the design choice to save on board real-estate and not
bring out the JTAG header. If you need access to the JTAG pins, a skilled technician can
solder wires to the pins.

6.7 Power Supply Connector

The TS-7400 requires regulated 5VDC at 450 mA @ 200 MHz(maximum). It is possible to
lower this power significantly by lowering the CPU clock rate or by powering-down the
Ethernet PHY chip. For example, by shutting down the Ethernet PHY chip and scaling
down the CPU clock rate to 20 MHz, one can obtain power consumptions less than 150
mA. If you really need a low-power board, consider the TS-7260, which is optimized for
low power applications.
A quick release screw-down terminal block for the 5V power and power GND connections
is provided on the TS-9441 for easy connection to an external power supply.
Warning
!
Supply voltages over 6 VDC may damage the TS-7400.
Be sure to use a regulated 5 VDC power supply, preferably with current limiting to 1 to 3
Amps. A current limited supply is very forgiving of common errors during development. A
PC power supply that may be capable of supplying 20 Amps or more is not
recommended. It is possible to do irreversible damage to the TS-7400 if the polarity on the
power leads is reversed.
© May, 2010
Table: JTAG signals at JTAG Header
PIN Signal
TCK
9
TDI
11
TMS
13
TDO
14
3.3 VCC
GND
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TS-7400/TS-9441 MANUAL
CONNECTORS AND HEADERS
Description
Test Clock
Test Data In
Test Mode Select
Test Data Out
Power Supply
Ground
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