10. Peripherals
PCI-960 – User’s Manual (V1.02)
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10.
Peripherals
10.1.1.
Temperature Sensors
The CPU temperature sensor
is integrated in the CPU. It provides the most relevant CPU temperature readings and
monitors the CPU temperature to make sure that the system is operating at a safe temperature level.
The chassis temperature sensors
are available on-board as thermal diodes to measure the on-board environmental
temperatures. If the temperature increases above a certain temperature level, the system will be hold in reset.
A support package is required to reads the motherboard hardware reporting of CPU temperature and
on-board environmental temperatures, obtained from the corresponding thermal diode implemented on-
board.
10.1.2.
Real Time Clock
The real-time clock performs time-keeping functions and includes 256 bytes of general purpose battery-backed CMOS
RAM. Features include an alarm function, programmable periodic interrupt and a 100-year calendar. All battery-backed
CMOS RAM data remains stored in an additional EEPROM.
This prevents loss of data.
10.1.3.
Watchdog Timer
A watchdog timer is provided, which forces either an IRQ, SMI, or Reset condition (configurable in the watchdog
register). The watchdog time can be programmed ranging from 1 up to 255 seconds/minutes.
