
TS-7300 MANUAL
CONNECTORS AND HEADERS
Table: LCD Header Signals
PIN
Function
Comments
1
LCD 5V
LCD Power
2
LCD_GND
3
LCD_RS
Register select
4
Bias
620 Ohm to GND
5
LCD_EN
Active high enable
6
LCD_WR#
Active low write
7
LCD_D1
8
LCD_D0
9
LCD_D3
10
LCD_D2
11
LCD_D5
12
LCD_D4
13
LCD_D7
14
LCD_D6
D0 - D7:
Buffered
bi-directional
data bus
Note that the pin-outs in the above table are not the standard given for LCD displays.
However, these pin-outs allow a standard ribbon cable to be used when the ribbon cable
is attached to the backside of the LCD.
!
Warning
Using an incorrect cable or mounting the LCD connector on the front-side can
result in a reverse power polarity and can damage the LCD display. Please refer to
your LCD data sheets for in-depth information.
Sample code is available for the LCD. Contact Technologic Systems for more information.
5.13 JTAG Header
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:
Table: JTAG signals at JTAG Header
PIN
Signal
Description
9
TCK
Test Clock
11
TDI
Test Data In
13
TMS
Test Mode Select
14
TDO
Test Data Out
1, 3, 5
3.3 VCC
Power Supply
10, 12
GND
Ground
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.
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