Instructions

41 C-Control Pro IDE

consists of a monochrome matrix of 5x7 pixels. A flashing cursor below any one of the characters

will indicate the current output position. The operating system provides a simple software interface

for output on the display. This display is connected to connector X14 (16 poles, double row). By

means of a mechanical protection a faulty connection and thus the confusing of poles is avoided.

The LCD module used is of type Hantronix HDM08216L-3. Further information can be found on the

Hantronix Webseite http://www.hantronix.com and in the data sheet list on the CD-ROM.

The display is operated in the 4-Bit data mode. Data bits are set to the EXT-Data output, and then

clocked into the 74HC164 shift register with triggering EXT-SCK. When LCD-E is set, the 4 Bits are

applied to the display.

LCD Contrast (LCD ADJ)

Direct frontal view will allow best readability of the LCD characters. If necessary the contrast must be

trivially re-adjusted. The contrast can be adjusted by means of potentiometer PT1.

Keyboard

For user inputs a 12 character keyboard (0..9,*,#) is provided (X15: 13 pole connector). The keyboard

is organized 1 out of 12, i. e. there is one line assigned to each key. The keyboard information is

read-in serially through a shift register. If no keyboard is used the 12 inputs can be used as addi-

tional digital inputs. The keyboard uses a 13 pole terminal (single row) and is plugged to X15 in such

a way that the keys will point towards the application board.

With activating the PL (parallel load - KEY-E) input of the 74HC165 all 12 keyboard wires are trans-

ferred in the 74HC165 shift register. After that all information bits are latched to Q7 with triggering of

CP (clock input - EXT-SCK). There they can be read with the EXT-Data Port. Since one 74HC165

holds only 8 Bit information, Q7 of the 1st 74HC165 is connected with DS of the 2nd 74HC165.

I2C Interface

Through this interface serial data can be transmitted at high speed. To do this only two signal lines

are necessary. Data transmission takes place according to the I2C protocol. To effectively use this

interface special functions are provided (see Software Description I2C).

I2C SCL

I2C Bus Clock Line

PortC.0

I2C SDA

I2C Bus Data Line

PortC.1

Power Supply (POWER, 5 Volts, GND)

Power is provided to the application board by means of a 9V/ 250mA Mains Plug-in Power Supply.

Depending on additionally used components it may later become necessary to use a power supply

with higher power rating. A fixed voltage control generates an internally stabilized 5V supply voltage.

This voltage is provided to all circuit components on the application board. Due to the power reserve

of the Plug-In Power Supply this voltage can also be used to power external ICs.

Please observe the Maximum Drawable Current. Exceeding this current may lead to immediate

destruction! Because of the relativelly high current consumption of the application board in the vicin-