MC68HC12 MOTOROLA [Motorola, Inc], MC68HC12 Datasheet - Page 387
MC68HC12
Manufacturer Part Number
MC68HC12
Description
The MC68HC912DT128A microcontroller unit (MCU) is a 16-bit device composed of standard on-chip peripherals including a 16-bit central processing unit
Manufacturer
MOTOROLA [Motorola, Inc]
Datasheet
1.MC68HC12.pdf
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MC68HC912DT128A — Rev 4.0
MOTOROLA
CC, CB, CA — Analog Input Channel Select Code
Table 19-8
denote the expected digital code that should be generated by the
special conversion for 8-bit resolution.
These bits select the analog input channel(s).
coding used to select the various analog input channels. In the case
of single channel scans (MULT=0), this selection code specifies the
channel for conversion. In the case of multi-channel scans (MULT=1),
this selection code represents the first channel to be examined in the
conversion sequence. Subsequent channels are determined by
incrementing the channel selection code; selection codes that reach
the maximum value wrap around to the minimum value.
Note that for special conversion mode, bits CC/CB/CA have a
different function. Instead of specifying the analog input channel, they
identify which special channel conversion is to take place. (See
19-8.) A summart of the channels converted and the associated result
locations for multiple channel scans can be found in
Table 19-9. Analog Input Channel Select Coding
Analog-to-Digital Converter
lists the special channels. The last column in the table
CC
0
0
0
0
1
1
1
1
CB
0
0
1
1
0
0
1
1
CA
0
1
0
1
0
1
0
1
Analog Input
Channel
AD0
AD1
AD2
AD3
AD4
AD5
AD6
AD7
Analog-to-Digital Converter
Table 19-9
Table
Technical Data
ATD Registers
lists the
19-10.
Table
387
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