Icop VEX-6253, User Manual, Page: 34 / 38

VEX-6253 Vortex 86EX

CPU Module
30
2.6 Watchdog Timer
There are two watchdog timers in Vortex86SX/DX/DX2/EX CPU. One is compatible with M6117D
watchdog timer and the other is new. The M6117D compatible watchdog timer is called WDT0
and new one is called WDT1.
We also provide DOS, Linux and WinCE example for your reference. For more technical support,
please visit: http://dmp.com.tw/tech .
2.7 SPI flash (Serial Peripheral Interface)
SPI Flash
(
Serial Peripheral Interface) offers many benefits including: reduced controller pin
count, smaller and simpler PCBs, reduced switching noise, less power consumption, and lower
system cost.
If users are considering using a formatted SPI flash to boot the system or emulate SPI flash as
Floppy (A: Driver or B: Driver), changing CMOS Setup will be required. Boot up under DOS 6.22,
X-DOS, DR-DOS or Free DOS is recommended.
For more technical support, please visit: http://dmp.com.tw/tech .