Datasheet

page 30
When working with multi media
applications it is far more
intuitive to use a single joystick
than several dierent push
buttons that are more far apart.
This is more natural for users
and they can browse through
on-screen menus, or even play
games much easier. mikromedia
™
workStation v7 features navigation
switch with ve dierent positions:
Up, Down, Left, Right and Push. Each
of those acts as a button, and is connected
to one of the following microcontroller pins:
G0.6, G1.0, G0.5, G0.7, G4.1 (respectively). After
pressing the navigation switch in desired direction,
associated microcontroller pins are connected to GND,
which can be detected in user software. To enable LEFT, UP,
RIGHT, DOWN, PUSH ports you must turn on DIP switches SW4.1-SW4.5.
Navigation switch
Figure 10-2: Navigation switch is an intuitive solution for browsing
through on-screen menus.
LEFT
RIGHT
DOWN
PUSH
4
5
6
1
2
3
KEY1
LEFT
UP RIGHT
DOWN
PUSH
R18
220
DATA BUS
1 2 3 4 5 6 7 8
O
N
SW4
UP
G0.5
G0.6
G0.7
G1.0
G4.1
R321K R331K R341K
VCC-3.3V
R351K R361K
VCC-3.3V
Figure 10-1: Navigation switch connection schematic.
other modules