Freescale Semiconductor DEMO9S08AC60E Uživatelský manuál Strana 17

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Table 1-7 COM Connector (J34) Pinout
Pin Signal Name
1
Connected to pins 4 and 6 through
z
ero ohm resistors R55 and R56
2 TXD
3 RXD
4
Connected to pins 1 and 6 through
z
ero ohm resistors R55 and R56
5 GND
6
Connected to pins 1 and 4 through
z
ero ohm resistors R55 and R56
7 NC
8 NC
9 NC
DEMO9S08AC60E Users Guide, Rev. 0.1
Freescale Semiconductor 17
1.13 User Options
The DEMO9S08AC60E includes various user input and output devices to assist
in application development and silicon evaluation. These devices include four
pushbutton switches, a 10 LED light bar, 8 rocker switches, an accelerometer,
a light sensor, and a potentiometer.
1.13.1 Pushbutton Switches
Four pushbutton switches provide momentary active low input for user
applications. MCU port pins can be disconnected from these pushbutton
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