MC68HC908GP32CP Freescale Semiconductor, MC68HC908GP32CP Datasheet - Page 91

• Manufacturer Part Number: MC68HC908GP32CP
• Description: IC MCU 8MHZ 32K FLASH 40-DIP
• Manufacturer: Freescale Semiconductor
• Series: HC08r

Specifications of MC68HC908GP32CP

• Core Processor: HC08
• Core Size: 8-Bit
• Speed: 8MHz
• Connectivity: SCI, SPI
• Peripherals: LVD, POR, PWM
• Number Of I /o: 33
• Program Memory Size: 32KB (32K x 8)
• Program Memory Type: FLASH
• Ram Size: 512 x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Data Converters: A/D 8x8b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 40-DIP (0.600", 15.24mm)
• For Use With: M68EVB908GP32 - BOARD EVALUATION FOR HC908GP32
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -

5.4.1 ADC Port I/O Pins
MC68HC908GP32
MOTOROLA
•
MC68HC08GP32
PTB7/AD7–PTB0/AD0 are general-purpose I/O (input/output) pins that
share with the ADC channels. The channel select bits define which ADC
channel/port pin will be used as the input signal. The ADC overrides the
port I/O logic by forcing that pin as input to the ADC. The remaining ADC
channels/port pins are controlled by the port I/O logic and can be used
as general-purpose I/O. Writes to the port register or DDR will not have
any affect on the port pin that is selected by the ADC. Read of a port pin
in use by the ADC will return a logic 0.
INTERNAL
DATA BUS
AIEN
INTERRUPT
LOGIC
COCO
READ DDRBx
WRITE DDRBx
WRITE PTBx
READ PTBx
—
Rev. 6
Analog-to-Digital Converter (ADC)
BUS CLOCK
CONVERSION
COMPLETE
CGMXCLK
RESET
Figure 5-1. ADC Block Diagram
ADIV2–ADIV0
ADC DATA REGISTER
GENERATOR
DDRBx
PTBx
CLOCK
ADC
ADC CLOCK
ADICLK
VOLTAGE IN
DISABLE
Analog-to-Digital Converter (ADC)
(V
ADC
ADIN
)
DISABLE
CHANNEL
SELECT
Functional Description
ADC CHANNEL x
PTBx
Technical Data
ADCH4–ADCH0
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