IBM PC CONVERTIBLE Technical Reference page 230

0725 C3
0726
RET
KLNOISE
ENDP
Communications Baud Rate Table
(BAUD_TABLE)
*************************************
COMMUNICATIONS BAUD RATE TABLE
*************************************
ORG OE729H
0729
ORG 00729H
0729
BAUD_TABLE LABEL WORD
0729 0417
DW 1047 llO BAUD TBL OF INIT VAL
072B 0300
DW 768 150
072D
0180 DW 384 300
072F OOCO DW 192
600
0731 0060
DW 96 1200
0733 0030
DW 48 2400
0735
0018 DW 24 4800
0737 OOOC DW 12 9600
RS-232 I/O Entry Point (RS232_10)
*************************************
RS232 1/0 ENTRY POINT
*************************************
ORG OE739H
0739
ORG 00739H
=
0739 RS23LIO EQU
0739 E9 0000 E
JMP COMMO_IO
Indicate POST Error (ERR_BEEP)
; *********************************************************************
ROUTINE-NAME: ERR_BEEP
FUNCTION: THIS ROUTINE WILL ISSUE LONG (3 SEC) AND/OR SHORT (1 SEC)
TONES TO THE SPEAKER TO INDICATE POST STATUS TO THE OPERATOR
ENTRY CONDITIONS:
PURPOSE OF ENTRY: SEND BEEP TONES TO THE SPEAKER
INPUT CONDITIONS: DH
=
NUMBER OF LONG TONES TO SOUND
DL
=
NUMBER OF SHORT TONES TO SOUND
RESTRICTIONS: NONE
EXIT CONDITIONS:
NORMAL EXIT CONDITIONS: SPEAKER IS SOUNDED
ERROR EXIT CONDITIONS: NONE
ROM BIOS 2-205