User Guide

Figure 128 Display unit connections

Keyboard

The keyboard is made up of a 4x5 matrix and three special separate keys. They are connected as described in

the table below.

Table 18 Keypad connections

Keypad matrix and Navigation

key

Tiku connection Description

Navigation

Key

Left Tiku - Separate controllines (Special keys)

for Navi_Up, Navi_Down and

Navi_Select. Navi_Left and

Navi_Right are connected to the

keyboard matrix

Up GPIO 6

Right -

Down GPIO 7

Select GPIO 13

GND -

RM-13/33

Nokia Customer Care System Module Description

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