MC68HC16R1/916R1
USER’S MANUAL
MOTOROLA
ix
(Continued)
Title
Paragraph
Page
TABLE OF CONTENTS
10.2.3
10.3
10.4
10.5
10.5.1
10.5.2
10.6
10.6.1
10.6.2
10.6.3
10.6.4
10.7
10.7.1
10.7.2
10.7.3
10.7.4
10.7.5
10.7.5.1
10.7.5.2
10.7.6
10.7.7
10.7.8
10.8
10.8.1
10.8.2
10.8.3
10.8.4
10.8.5
10.8.6
10.8.6.1
10.8.6.2
Analog Supply Pins .........................................................................10-3
Programmer’s Model ...............................................................................10-3
ADC Bus Interface Unit ...........................................................................10-3
Special Operating Modes ........................................................................10-3
Low-Power Stop Mode ....................................................................10-4
Freeze Mode ...................................................................................10-4
Analog Subsystem ..................................................................................10-4
Multiplexer .......................................................................................10-5
Sample Capacitor and Buffer Amplifier ...........................................10-5
RC DAC Array .................................................................................10-6
Comparator .....................................................................................10-6
Digital Control Subsystem .......................................................................10-6
Control/Status Registers .................................................................10-6
Clock and Prescaler Control ............................................................10-6
Sample Time ...................................................................................10-7
Resolution .......................................................................................10-7
Conversion Control Logic ................................................................10-7
Conversion Parameters ..........................................................10-8
Conversion Modes ..................................................................10-8
Conversion Timing ........................................................................10-12
Successive Approximation Register ..............................................10-13
Result Registers ............................................................................10-13
Pin Considerations ................................................................................10-14
Analog Reference Pins ..................................................................10-14
Analog Power Pins ........................................................................10-14
Analog Supply Filtering and Grounding .........................................10-16
Accommodating Positive/Negative Stress Conditions ...................10-18
Analog Input Considerations .........................................................10-20
Analog Input Pins ..........................................................................10-22
Settling Time for the External Circuit .....................................10-23
Error Resulting from Leakage ...............................................10-24
SECTION 11
MULTICHANNEL COMMUNICATION INTERFACE
11.1
11.2
11.2.1
11.2.1.1
11.2.1.2
11.2.1.3
11.2.2
General ....................................................................................................11-1
MCCI Registers and Address Map ..........................................................11-2
MCCI Global Registers ....................................................................11-2
Low-Power Stop Mode ............................................................11-2
Privilege Levels .......................................................................11-3
MCCI Interrupts .......................................................................11-3
Pin Control and General-Purpose I/O .............................................11-4