Using the AT85DVK-07 Board
2-18
AT85DVK-07 Development Board User Guide
4391B–MP3–07/07
2.10
FM Receiver Unit
The FM unit consists in 2 extension connectors J1 & J2 (see Table 2-17 and Table 2-18)
allowing user to plug a daughter board featuring a FM receiver.
Note:
Using P4.3:0 I/O port to control the FM receiver chip implies that the on-board DAC can
not be used in this configuration.
Table 2-17.
FM Receiver Extension Connector (J1)
Table 2-18.
FM Receiver Extension Connector (J2)
2.11
Display Unit
The Display unit consists in a 128x64 monochrome pixels LCD. It is possible to plug a
daughter board equipped with an other LCD (color, higher resolution…) using J11 con-
nector (see Section 2.4.2).
Note:
On-board LCD must be disconnected before plugging any daughter boards.
2.12
Keypad Unit
The Keypad unit consists in a 3 x 4 key matrix including a 4-direction mini joystick and
power-on key along with 2 extension connectors. J10 & J30 allow user to plug a daugh-
ter board featuring particular keys like 2-direction mini joystick, rolling wheel…
Note:
To ease software implementation with generic software keypad driver, user’s keypad
arrangement must fit with an available matrix configuration (for further information, refer
to the firmware user’s manual).
Figure 2-18.
Keypad Unit Implementation
Pin Number
Pin Name
Pin Description
1
VDD
IOVDD power supply 1.8V or 3V depending on the power configuration
2
LINL
Left channel analog input
3
LINC
Common reference analog input
4
LINR
Right channel analog input
5
AVSS
0V analog supply reference
6
AVSS
0V analog supply reference
Pin Number
Pin Name
Pin Description
1
VDD
IOVDD power supply 1.8V or 3V depending on the power configuration
2
P4.0/OCLK
FM receiver control bit 0
3
P4.1/DCLK
FM receiver control bit 1
4
P4.2/DDAT
FM receiver control bit 2
5
P4.3/DSEL
FM receiver control bit 3
6
VSS
0V digital supply reference
J
1
0
J
3
0
F1
F2
