Keyboard - Nokia RH-18 Manual

CCS Technical Documentation

Keyboard

The keyboard PWB layout consists of a grounded outer ring and an inner pad.
Power key is integrated in keypad. For the schematic diagram of the keyboard kindly refer
to the A3 schematic diagrams.
UPP Pin
GenIO1
GenIO2/P05
GenIO20
GenIO21
GenIO25
GenIO27
P00
P01
P02
P03
P04
P10
P11
P13
P14
P15
All lines are configured as input, when there is no key pressed.
When a key is pressed, the specific line where the key is placed is pulled low. This gener-
ates an interrupt to the MCU and the MCU now starts its scanning procedure.
When the key has been detected all the keypad-register inside the UPP is reset and it's
ready receiving new interrupt.
Issue 1 10/03
Company confidential
Table 17: Keyboard configuration
Internal
In/
Pad symbol Pull
Out
Up/down
0 In Up
7 In Up
# In Up
* In Up
Up In Up
1 In Up
Menu/(End) In Up
3 In Up
9 In Up
8 In Up
Down In Up
6 In Up
4 In Up
5 In Up
C/(Send) In Up
2 In Up
Nokia Corporation.
Interrupt
GenIOInt5 Falling edge interrupt
P0 int Falling edge interrupt
GenIOInt2 Falling edge interrupt
GenIOInt3 Falling edge interrupt
GenIOInt4 Falling edge interrupt
GenIOInt6 Falling edge interrupt
P0 int Falling edge interrupt
P0 int Falling edge interrupt
P0 int Falling edge interrupt
P0 int Falling edge interrupt
P0 int Falling edge interrupt
P1 int Falling edge interrupt
P1 int Falling edge interrupt
P1 int Falling edge interrupt
P1 int Falling edge interrupt
P1 int Falling edge interrupt
RH-18/36/38
Engine module
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