IBM PC CONVERTIBLE Technical Reference page 222

System Descriptor Table
0257
0257 0008
0259 F9
025A 00
025B 00
025C 38
025D 00
025E 00
025F 00
0260 00
SYSTEM DESCRIPTOR TABLE
ACCESSED VIA INT 15H FUNCTION OCOH
SYS_DESCR_TABLE LABEL BYTE
DW 8
DB OF9H
DB 0
DB
0
DB 00111000B
DB 0
DB 0
DB 0
DB 0
DESCRIPTOR TABLE LENGTH
SYSTEM MODEL BYTE
SECONDARY MODEL BYTE
BIOS REVISION LEVEL
FEATURE INFORMATION BYTE 1
FEATURE INFORMATION BYTE 2
FEATURE INFORMATION BYTE 3
FEATURE INFORMATION BYTE 4
FEATURE INFORMATION BYTE 5
Default System Profile
0261
0261
EO 00
0263
0000 0000
0267 OE 00
0269
DEFAULT SYSTEM PROFILE
THIS IS THE SET OF PARAMETERS DEFINING THE
DEFAULT SYSTEM PROFILE WHICH IS LOADED AFTER
STANDBY POWER LOST CONDITIONS
DEF _SYS_PROF
LABEL BYTE
DB OEOH,O ; PROFILE BYTE 1 AND 2
; WARMSTART, LOW BAT WNG ENAB
INIT VIDEO MODE
=
CGA 80X25
LCD HIGH INT
=
NO OPERATION
RS232 AND MOM NOT AV ON BATT
DW 0,0 KYBD INACT TIMEOUT VALUES
LCD BLANK
=
NO TIMEOUT
SYSTEM OFF
=
NO TIMEOUT
DB OEH,O DFL T MDM SET 1200BPS, E-PRTY
NO AUTO-ANSWER
REAL TIME CLOCK VALID SIGNATURE
RTCSIG_SAVE LABEL BYTE
0269 52 54 43 47
DB "RTCG" REAL TIME CLOCK SIGNATURE
WRTN & CKO BY POST (POIMAIN)
Printer Configuration Table (PRT _TAB)
026D
0260 0078
026F 0378
0271 03BC
0273 0278
0275
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-
- - - - - -
-- - -
- - - -- - -
- -
- - - -
- - - --
- ---
; PRINTER PORT SEARCH TABLE USED DURING POST
PRLTAB LABEL WORD
OW 078H COMPACT PRINTER PORT
OW
378H PRIMARY PRINTER PORT
OW 3BCH MONO ADAPTER PRINTER PORT
OW 278H ALTERNATE PRINTER PORT
PRLTAB_END LABEL WORD
ROM BIOS 2-197