Apex PDT Technical Reference Manual
3 Hardware Configuration
COAM30002
Rev. 2.00
8/13/02
3-16
BIOS Interrupt 15h - System
Function 55h, Service 00h –
Get Beeper Volume
Input:
ah = 55h
al = 00h
Returns:
Carry Flag clear if successful
ax = current setting (0 = off, 1 = low, 2 = med, 3 =
high)
Carry Flag set on error
Notes:
This function retrieves the current volume setting of the
Apex PDT internal beeper.
Function 55h, Service 01h –
Set Beeper Volume
Input:
ah = 55h
al = 01h
bx = volume setting (0 = off, 1 = low, 2 = med, 3 = high)
Returns:
Carry Flag clear if successful
ax = current setting (after change)
Carry Flag set on error
Notes:
This function is used to set the Apex PDT internal beeper
volume to the desired level.
Function 55h, Service 02h –
Volume Next
Input:
ah = 55h
al = 02h
Returns:
Carry Flag clear if successful
ax = current setting (after change)
Carry Flag set on error
Notes:
This function increases the Apex PDT internal beeper
volume from its current setting to the next higher setting.
Volume steps from high (3) to off (0).
Содержание Apex III
Страница 2: ...This Page Intentionally Left Blank...
Страница 12: ...Apex PDT Technical Reference Manual Table Of Contents COAM30002 Rev 2 00 8 13 02 viii...
Страница 108: ...Apex PDT Technical Reference Manual 6 Utility Programs COAM30002 Rev 2 00 8 13 02 6 36...
Страница 132: ...Apex PDT Technical Reference Manual 7 Apex Programming Resource COAM30002 Rev 2 00 8 13 02 7 24...
Страница 152: ...Apex PDT Technical Reference Manual 10 Power Management COAM30002 Rev 2 00 8 13 02 10 8...
Страница 160: ...Apex III Technical Reference Manual 11 Technical Specifications COAM30002 Rev 2 00 8 13 02 11 8...
Страница 166: ...Apex III Technical Reference Manual Appendix A COAM30002 Rev 1 03 08 13 02 A 6...
Страница 167: ...This Page Intentionally Left Blank...
Страница 168: ...Compsee Inc A Subsidiary of McRae Industries Inc Compsee Inc Contact Information www compsee com 1 800 628 3888...