Datasheet

3Maxim Integrated
16-Bit Microcontrollers with
Infrared Module and Optional USB
MAXQ612/MAXQ622
Power-Fail Detection .........................................................................29
Applications Information
........................................................................ 33
Grounds and Bypassing
......................................................................33
Additional Documentation
......................................................................33
Block Diagram
............................................................................... 34
Development and Technical Support
.................................................................34
Package Information
........................................................................... 34
Ordering Information/Selector Guide
.............................................................. 34
Revision History
.............................................................................. 35
LIST OF FIGURES
Figure 1. Series Resistors (R
S
) for Protecting Against High-Voltage Spikes ................................ 10
Figure 2. I
2
C Bus Controller Timing Diagram........................................................ 10
Figure 3. On-Chip Oscillator
..................................................................... 26
Figure 4. In-Circuit Debugger
................................................................... 28
Figure 5. Power-Fail Detection During Normal Operation
.............................................. 29
Figure 6. Stop Mode Power-Fail Detection States with Power-Fail Monitor Enabled
.......................... 31
Figure 7. Stop Mode Power-Fail Detection with Power-Fail Monitor Disabled . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
LIST OF TABLES
Table 1. Memory Areas and Associated Maximum Privilege Levels ...................................... 22
Table 2. Watchdog Interrupt Timeout (Sysclk = 12MHz, CD[1:0] = 00)
.................................... 23
Table 3. USART Mode Details
................................................................... 25
Table 4. Power-Fail Warning Level Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Table 5. Power-Fail Detection States During Normal Operation
......................................... 30
Table 6. Stop Mode Power-Fail Detection States with Power-Fail Monitor Enabled
.......................... 31
Table 7. Stop Mode Power-Fail Detection States with Power-Fail Monitor Disabled
.......................... 32
TABLE OF CONTENTS (continued)