Pin out for LCD Headers, On the Display

Using the STK502 Top Module

Figure 2-11.Pin out for LCD Headers

1 2

SEG01

SEG03

SEG05

SEG07

SEG09

SEG11

SEG13

SEG15

SEG17

SEG19

SEG21

SEG23

SEG25

COM00

COM02

1 2

SEG02	LCD27
SEG04	LCD29
SEG06	LCD06
SEG08	LCD26
SEG10	LCD08
SEG12	LCD23
SEG14	LCD10
SEG16	LCD21
SEG18	LCD14
SEG20	LCD11
SEG22	LCD18
SEG24	LCD15
NC	LCD19
NC	LCD24
NC	LCD31
COM01	BP1
COM03	BP4

LCD28

LCD04

LCD25

LCD05

LCD22

LCD07

LCD20

LCD09

LCD12

LCD13

LCD16

LCD17

LCD03

LCD30

LCD32

BP2

BP3

Seg. M169

LCD Pins

This hardware configuration will give a certain bit-mapping between the bits in the ATmega169 LCDDRx Register and the segments on the STK502 LCD. See Section 4.1 “STK502 LCD Bit Mappings”

2.5.3Using Both Colons With the header J300 labelled “19 24” one can connect LCD-pin 24 (which is default

on the Display	unconnected) to LCD-pin 19 by the use of a jumper. See Figure 2-12. The reason for
	doing so is that the LCD-pin 24 has the segment “COL1” and LCD-pin 19 has “COL2”. In
	applications where a clock, date etc. shall be displayed, it can be useful to control both
	colons on the LCD-display. But connecting these LCD-pins will also lead to a connection
	between segment (see Technical Specifications) “S5” and “3”, “S8” and “S7”, “8” and
	“7”, which will in practice make them useless. See Figure 2-13 showing which seg-
	ments are available on the LCD-display with the default segment configuration.

2-8

STK502 User Guide

2528A–AVR–11/02

Figure 2-11.Pin out for LCD Headers

on the Display