MMCCMB2107 Freescale, MMCCMB2107 Datasheet - Page 271

• Manufacturer Part Number: MMCCMB2107
• Manufacturer: Freescale

Specifications of MMCCMB2107

• Lead Free Status / RoHS Status: Not Compliant

13.1 Contents
13.2 Introduction
MMC2107 – Rev. 2.0
MOTOROLA
Technical Data — MMC2107
13.2
13.3
13.3.1
13.3.2
13.3.3
13.3.4
13.4
13.5
13.6
13.6.1
13.6.2
13.6.2.1
13.6.2.2
13.6.2.3
13.6.2.4
The watchdog timer is a 16-bit timer used to help software recover from
runaway code. The watchdog timer has a free-running down-counter
(watchdog counter) that generates a reset on underflow. To prevent a
reset, software must periodically restart the countdown.
Freescale Semiconductor, Inc.
For More Information On This Product,
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 271
Modes of Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .272
Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 273
Signals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 273
Memory Map and Registers . . . . . . . . . . . . . . . . . . . . . . . . . . 274
Wait Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .272
Doze Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .272
Stop Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .272
Debug Mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 272
Memory Map . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 274
Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 274
Section 13. Watchdog Timer Module
Watchdog Control Register . . . . . . . . . . . . . . . . . . . . . . 275
Watchdog Modulus Register . . . . . . . . . . . . . . . . . . . . . 277
Watchdog Count Register . . . . . . . . . . . . . . . . . . . . . . .278
Watchdog Service Register . . . . . . . . . . . . . . . . . . . . . . 279
Go to: www.freescale.com
Watchdog Timer Module
Technical Data
271