Intel PCA-6175 manual Cmos clear J6, Watchdog timer output J8

1.9.3 CMOS clear (J6)

The PCA-6175 CPU card contains a jumper that can erase CMOS data and reset the system BIOS information. Normally this jumper should be set with pins 1-2 closed. If you want to reset the CMOS data, set J6 to 2-3 closed for just a few seconds, and then move the jumper back to 1-2 closed. This procedure will reset the CMOS to its default setting.

Table 1-4: CMOS clear jumper settings (J6)

Function Jumper setting

Keep CMOS data 1-2 closed

1

Clear CMOS data 2-3 closed

1

1.9.4 Watchdog timer output (J8)

The PCA-6175 contains a watchdog timer that will reset the CPU or send a signal to IRQ11 in the event the CPU stops processing. This feature means the PCA-6175 will recover from a software failure or an EMI problem. The J8 jumper settings control the outcome of what the computer will do in the event the watchdog timer is tripped.

Table 1-5: Watchdog timer output (J8)

Function Jumper setting

IRQ11 1-2 closed

1

Reset 2-3 closed

1

Chapter 1 Hardware Configuration 13