MC68HC908GR8CDW Freescale Semiconductor, MC68HC908GR8CDW Datasheet - Page 86

• Manufacturer Part Number: MC68HC908GR8CDW
• Description: IC MCU 8K FLASH 8MHZ 28-SOIC
• Manufacturer: Freescale Semiconductor
• Series: HC08r

Specifications of MC68HC908GR8CDW

• Core Processor: HC08
• Core Size: 8-Bit
• Speed: 8MHz
• Connectivity: SCI, SPI
• Peripherals: LVD, POR, PWM
• Number Of I /o: 17
• Program Memory Size: 7.5KB (7.5K x 8)
• Program Memory Type: FLASH
• Ram Size: 384 x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Data Converters: A/D 6x8b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 28-SOIC (7.5mm Width)
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -

Analog-to-Digital Converter (ADC)
Technical Data
86
NOTE:
AIEN — ADC Interrupt Enable Bit
ADCO — ADC Continuous Conversion Bit
ADCH4–ADCH0 — ADC Channel Select Bits
Recovery from the disabled state requires one conversion cycle to
stabilize.
The voltage levels supplied from internal reference nodes, as specified
in
in production test and for user applications.
ADCH4
Table
Freescale Semiconductor, Inc.
When this bit is set, an interrupt is generated at the end of an ADC
conversion. The interrupt signal is cleared when the data register is
read or the status/control register is written. Reset clears the AIEN bit.
When this bit is set, the ADC will convert samples continuously and
update the ADR register at the end of each conversion. Only one
conversion is completed between writes to the ADSCR when this bit
is cleared. Reset clears the ADCO bit.
ADCH4–ADCH0 form a 5-bit field which is used to select one of 16
ADC channels. Only six channels, AD5–AD0, are available on this
MCU. The channels are detailed in
when using a port pin as both an analog and digital input
simultaneously to prevent switching noise from corrupting the analog
signal. See
The ADC subsystem is turned off when the channel select bits are all
set to 1. This feature allows for reduced power consumption for the
MCU when the ADC is not being used.
0
0
0
For More Information On This Product,
1 = ADC interrupt enabled
0 = ADC interrupt disabled
1 = Continuous ADC conversion
0 = One ADC conversion
5-1, are used to verify the operation of the ADC converter both
Analog-to-Digital Converter (ADC)
ADCH3
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Table
0
0
0
Table 5-1. Mux Channel Select
5-1.
ADCH2
0
0
0
ADCH1
0
0
1
Table
ADCH0
5-1. Care should be taken
0
1
0
MC68HC908GR8 — Rev 4.0
Input Select
PTB0/ATD0
PTB1/ATD1
PTB2/ATD2
MOTOROLA