MC9S12G FREESCALE [Freescale Semiconductor, Inc], MC9S12G Datasheet - Page 396

• Manufacturer Part Number: MC9S12G
• Description: Ignores external trigger. Performs one conversion sequence and stops.
• Manufacturer: FREESCALE [Freescale Semiconductor, Inc]

Analog-to-Digital Converter (ADC10B8CV2)
11.4.2.2
Each ATD input pin can be switched between analog or digital input functionality. An analog multiplexer
makes each ATD input pin selected as analog input available to the A/D converter.
The pad of the ATD input pin is always connected to the analog input channel of the analog mulitplexer.
Each pad input signal is buffered to the digital port register.
This buffer can be turned on or off with the ATDDIEN register for each ATD input pin.
This is important so that the buffer does not draw excess current when an ATD input pin is selected as
analog input to the ADC10B8C.
11.5
At reset the ADC10B8C is in a power down state. The reset state of each individual bit is listed within the
Register Description section (see
their bit-field.
11.6
The interrupts requested by the ADC10B8C are listed in
related vector address and priority.
See
396
This document is valid for the S12G96 and the S12G128 device. All information related to other devices is preliminary.
Section 11.3.2, “Register Descriptions”
Resets
Interrupts
General-Purpose Digital Port Operation
Sequence Complete Interrupt
Compare Interrupt
Interrupt Source
MC9S12G Family Reference Manual,
Section 11.3.2, “Register
Table 11-24. ATD Interrupt Vectors
for further details.
Mask
CCR
I bit
I bit
Table
Descriptions”) which details the registers and
ACMPIE in ATDCTL2
ASCIE in ATDCTL2
11-24. Refer to MCU specification for
Local Enable
Rev.1.01
Freescale Semiconductor