ADuC812 Evaluation Board Reference Guide
Pin Function
Pin Function
1 PortX.0
6 PortX.5
2 PortX.1
7 PortX.6
3 PortX.2
8 PortX.7
4 PortX.3
9 DGND
5 PortX.4
10
DGND
Table 2: Pin functions for Port0, Port2 and Port3 connectors J3, J6, J7
J4/J9/J10 Power Supply Connections
J4 allows for the connection between the evaluation board and the 9V power supply provided in the
ADuC812 QuickStart Development System.
J9 and J10 allow for the connection of a typical 9V battery to the evaluation board.
J5 (SPI/I
2
C Connector)
J5 is situated to the left side of the board and gives access to both the SPI and I
2
C interfaces. The pinout is
as in fig 3 with the orientation vertical. Look for the pin1 marker on the evaluation board.
Pin Function Pin Function
1 SCLOCK 6 DGND
2 DGND 7
66
3 SDATA/MOSI 8
DGND
4 DGND 9 NC
5 MISO 10
DGND
Table 3: Pin functions for SPI connector J7
J8 (Timer/Strobe)
The timer/strobe control signals on the ADuC812 are all brought out to a 10 way connection port just
above the prototyping. The exact pinouts of the ports are shown in table 2 with reference to the connector
shown in figure 3.
Pin Function
Pin Function
1 T0
6 T2
2 T1
7 T2EX
3
($
8 DGND
4
36(1
9 DGND
5 ALE
10
DGND
Table 4: Timer/Strobe connector J3
