Theory of Operation
Page 27
3
3
Resetting the EPC
There are a number of ways to reset (reboot) the EPC.
Power-off, Power-on
This causes the entire system to reset. The system will run the power-on
self-tests and reboot the operating system.
Front-panel Reset button
The Reset button causes the EPC to perform a hardware reset. The system
will run the power-on self-tests and reboot the operating system.
Expansion Interface
Pin A57 on the EXM expansion interface connector is defined as
~RESETIN. Asserting this input (low) will reset the processor. This is
provided to allow remote reset to be implemented. This is a full hardware
reset. The system will run the power-on self-tests and reboot the operating
system.
CTRL+ALT+DEL
This keyboard sequence is called a "warm boot." The EPC does not
reinitialize all of the processor's hardware. The power-on self-test does not
run. However, the operating system will be reloaded. This type of reset
typically only works under DOS.
Additional abnormal conditions that cause a reset
Low Vcc
No DRAM refresh signal from the micromonitor
Summary of Contents for EPC-26A/27
Page 5: ...EPC 26A 27 Hardware Reference Page iv NOTES...
Page 27: ...BIOS Configuration 2 2 Page 21 NOTES...
Page 35: ...EPC 26A 27 Hardware Reference Page 28 3 3 NOTES...
Page 45: ...EPC 26A 27 Hardware Reference Page 38 5 5 NOTES...
Page 51: ...EPC 26A 27 Hardware Reference Page 44 6 6 NOTES...
Page 56: ...Page A1 A A Appendix A Mechanical Dimensions Figure 8 EPC Mechanical Dimensions...
Page 57: ...EPC 26A 27 Hardware Reference Page A2 A A NOTES...
Page 58: ...Page A1 A A Appendix A Mechanical Dimensions Figure 8 EPC Mechanical Dimensions...
Page 59: ...EPC 26A 27 Hardware Reference Page A2 A A NOTES...
