Compsee Apex III, Technical Reference Manual

Page: 151 / 168

Apex PDT Technical Reference Manual 10 Power Management
COAM30002 Rev. 2.00 8/13/02
10-7
q
DO NOT leave a PC Card in Slot 1 if it has not been
recognized.
q
DO NOT perform unnecessary “activities” in the background.
Activities are indications that the system is doing something
and needs to be operating. Activities reset mode timers and
cause a transition from Low Speed Mode or Standby Mode to
High Speed Mode. Activities include
Ø
Key press
Ø
CPU access to on-board Flash (A-drive and C-drive)
Ø
Serial Port access
Ø
UART’s serial input pin (SIN)
Ø
ACIN (Apex III is in Dock)
Ø
DMA request
Ø
CPU access to IDE hard drive registers
Ø
CPU access (memory or I/O) to PC Cards
Ø
PC Card change interrupt
Ø
CPU access to internal graphics (reading or writing to the
display)
Additional Resources
Additional Power Management functionality is available to the
Apex PDT developer through the use of the Apex Programming
Resource (APR). Refer to the Apex Programming Resource section
of this manual for detailed information.