MIC-7900 User Manual
74
A.1
Programming the Watchdog Timer
The MIC-7900's watchdog timer can be used to monitor system software operation
and take corrective action if the software fails to function within the programmed
period. This section describes the operation of the watchdog timer and how to pro-
gram it.
A.1.1
Watchdog Timer Overview
The watchdog timer is built into the super I/O controller NCT6106D. It provides the
following user-programmable functions:
It can be enabled and disabled by user program
Timer can be set from 1 to 255 seconds or 1 to 255 minutes
Generates an interrupt or resets signal if the software fails to reset the timer
before time-out
A.1.2
Programming the Watchdog Timer
The I/O port address of the watchdog timer is 2E (hex) and 2F (hex). 2E (hex) is the
address port. 2F (hex) is the data port. You must first assign the address of register
by writing an address value into address port 2E (hex), then write/read data to/from
the assigned register through data port 2F (hex).
Summary of Contents for MIC-7900
Page 1: ...User Manual MIC 7900 Embedded Fan less IPC System 866 412 6278 CoastIPC com...
Page 11: ...Chapter 1 1 General Introduction This chapter gives background information on MIC 7900...
Page 16: ...MIC 7900 User Manual 6...
Page 28: ...MIC 7900 User Manual 18...
Page 29: ...Chapter 3 3 AMI BIOS Setup This chapter introduces how to set BIOS configuration data...
Page 77: ...Chapter 4 4 Software Installation This chapter introduces driver installation...
Page 82: ...MIC 7900 User Manual 72...
Page 83: ...Appendix A A Programming the Watchdog Timer...