mc68hc08az60 Freescale Semiconductor, Inc, mc68hc08az60 Datasheet - Page 399

• Manufacturer Part Number: mc68hc08az60
• Description: M68hc08 Family Of 8-bit Microcontroller Units Mcus
• Manufacturer: Freescale Semiconductor, Inc

Accuracy and
Precision
Interrupts
Low-Power Modes
Wait Mode
Stop Mode
5-adc-15
MOTOROLA
cleared. The COCO bit is set after the first conversion and will stay set
for the next several conversions until the next write of the ADC status
and control register or the next read of the ADC data register.
The conversion process is monotonic and has no missing codes. See
ADC Characteristics
When the AIEN bit is set, the ADC module is capable of generating a
CPU interrupt after each ADC conversion. A CPU interrupt is generated
if the COCO bit (ADC status control register, $0038) is at logic 0. If the
COCO bit is set, an interrupt is generated. The COCO bit is not used as
a conversion complete flag when interrupts are enabled.
The following subsections describe the low-power modes.
The ADC continues normal operation during wait mode. Any enabled
CPU interrupt request from the ADC can bring the MCU out of wait
mode. If the ADC is not required to bring the MCU out of wait mode,
power down the ADC by setting the ADCH[4:0] bits in the ADC status
and control register before executing the WAIT instruction.
The ADC module is inactive after the execution of a STOP instruction.
Any pending conversion is aborted. ADC conversions resume when the
MCU exits stop mode. Allow one conversion cycle to stabilize the analog
circuitry before attempting a new ADC conversion after exiting stop
mode.
Freescale Semiconductor, Inc.
For More Information On This Product,
Analog-to-Digital Converter (ADC-15)
Go to: www.freescale.com
on page 413 for accuracy information.
Analog-to-Digital Converter (ADC-15)
MC68HC08AZ60 — Rev 1.0
Interrupts
399