Freescale Semiconductor Demonstration Board DEMO9S08AC60E Manual Do Utilizador
Table 1-11 Accelerometer (U5) Connections
Accelerometer
Function
MCU Port
Jumper
Sleep Mode
PTC4
J5
Amplified Y Output
PTD4
J6
Amplified X Output
PTD5
J7
Raw Y Output
PTD6
J8
Raw X Output
PTD7
J9
DEMO9S08AC60E User’s Guide, Rev. 0.1
20
Freescale Semiconductor
1.13.5 Light Sensor
A photo detect IC (U4) combines a photodiode and a current amplifier on a
single IC to provide variable current. The light sensor is connected to the MCU
on PTD1. PTD1 can be disconnected from the light sensor by removing jumper
J4.
single IC to provide variable current. The light sensor is connected to the MCU
on PTD1. PTD1 can be disconnected from the light sensor by removing jumper
J4.
1.13.6 Potentiometer
A 10 Kohm thumb-wheel potentiometer (VR1) provides variable resistor for
users to assist them in application development. The potentiometer is connected
to the MCU on PTD0. PTD0 can be disconnected from the potentiometer by
removing jumper J3. The voltage seen on PTD0 is the result of a voltage divider
that changes as the potentiometer is turned.
users to assist them in application development. The potentiometer is connected
to the MCU on PTD0. PTD0 can be disconnected from the potentiometer by
removing jumper J3. The voltage seen on PTD0 is the result of a voltage divider
that changes as the potentiometer is turned.
1.13.7 I/O Connector
A 40-pin I/O connector (J35) is available for user expansion. This connector is
located on the bottom of the board and has holes so that pins of a connecting
located on the bottom of the board and has holes so that pins of a connecting