DEMO908GZ60E Freescale Semiconductor, DEMO908GZ60E Datasheet - Page 17

• Manufacturer Part Number: DEMO908GZ60E
• Description: BOARD DEMO FOR 908GZ60 MCU
• Manufacturer: Freescale Semiconductor
• Series: HC08GRr
• Type: MCUr

Specifications of DEMO908GZ60E

• Design Resources: DEMO908GZ60E Schematic
• Contents: Board, Cable, CD
• Processor To Be Evaluated: 908GZ
• Data Bus Width: 16 bit
• Interface Type: RS-232
• For Use With/related Products: 68HC908GZ60
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

D E M O 9 0 8 R G 6 0
Table 3: USER_EN Option Settings
Pushbutton Switches
Two push button switches provide momentary active low input for user applications. SW1 and
SW2 are enabled to the HC08 I/O ports by the USER option bank. SW1 and SW2 provide in-
put to HC08 I/O ports PTC6 and PTC5 respectively.
LED Indicators
Indicators LED1 and LED2 are enabled from HC08 I/O ports by the USER_EN option. The
LED indicators are active low and illuminate when a logic low (0V) signal is driven from the
respective MCU I/O port. MCU ports PTF0 and PTF1 drive LED1 and LED2 respectively.
RV1 Potentiometer
A 5k Ω, thumb-wheel potentiometer at RV1 provides variable resistance output for user
applications. The device provides a 0 to VDD (+5V typical) output to the PTB2 input when
enabled.
RZ1 Photocell
A visible-light sensitive photocell (RZ1) with an amplifying OPAMP circuit provides a variable
voltage output for user applications. Circuit output voltage ranges between .5V to VDD typical
and is inversely proportional to light intensity on the surface of the sensor (VDD = Dark).
When enabled, the circuit output voltage is provided to MCU port PTB3 input for user
application.
Jumper
User 1
User 2
User 3
User 4
User 5
User 6
On
Enable SW1
Enable SW2
Enable LED1
Enable LED2
Enable POT
Enable SENSOR
Disable SW1
Disable SW2
Disable LED1
Disable LED2
Disable POT
Disable SENSOR
Off
17
MCU PORT
PTC6 (U1-45)
PTC5 (U1-44)
PTF0 (U1-8)
PTF1 (U1-9)
PTB2 (U1-32)
PTB3 (U1-33)
A U G U S T
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