IBM PC CONVERTIBLE

= 0078
= 0079
= 0080
= 0008
= 007A
= 0040
= 0008
= 0004
= 0001
= 007C
= 0080
= 0040
= 0020
= 0004
= 0002
= 0001
= 007F
= 0080
= 0040
= 0020
= 0010
= 0008
= 0004
= 0002
= 0001
= 0083
= 0081
= 0082
= 00A1
= 00A2
= 00A3
= 0080
= 0001
= OOAO
= 0080
= 0007
- -- -- - - - --- ---- - - - - - -- --- -- - - -- - ------ -- - - -- - - - ---
;PORTABLE PRINTER PORTS
CPRLDATA
EQU
78H PORTABLE PTR XMIT PORT ADDR
CPRLSTAT
EQU
79H PORTABLE PTR STAT PORT AD DR
NOLBUSY
EQU
80H NOT BUSY BIT IN STATUS PORT
NOLERROR
EQU
08H NOT ERROR BIT IN STATUS PORT
CPRLMODE
EQU
7AH PORTABLE PTR MODE PORT ADDR
ACK
EQU
40H ACKNOWLEDGE BIT (NOT USED)
SELECT
EQU
08H SLCT BIT IN MD PRT (NOT USED)
NO_INIT
EQU
04H INITIALIZE BIT IN MODE PORT
STROBE
EQU
01H STRB BIT IN MD PRT (NOT USED)
------------ -- - - - - - - - - --- - - - - -- - - - - - - - -- - - - - - -- --
; KEY BOA R 0 & F EAT U R E C N T L - 7CH
KYBD_CNTL
EQU
7CH
KYBD AND FEAT CONTROL ADDR
ENJYBD_NMI
EQU
80H
ENABLE KEYBOARD NMI
KYBD-ATTACH
EQU 40H
KEYBOARD ATTACHED SENSE
SELKYBD_DIAG
EQU 20H
ACT KYBD DIAGNOSTI C MODE
ACLRS232
EQU
04H ACT RS232 FEATURE POWER
ACLMODEM
EQU
02H ACTIVATE MODEM FEATURE POWER
SELRS23LPRIM
EQU
01H SET RS232 FEAT TO PRI ADDR.
------- -- - - - -- -- - - - -- - --- - - - - - - - --- - - - - - - --
; POW E R I N T E R F ACE REG - 7 FH
PWILSTAT
EQU
7FH POWER INTERFACE PORT ADDRESS
LOW_BAT
EQU
80H LOW BATTERY STATUS FLAG
EXLPWR
EQU
40H EXTERNAL POWER SUPPLI ED
SYS_POR
EQU
20H SYSTEM POR REQSTD (AL T CTL R)
PON-ALRM
EQU
10H POWER ACTIVATED BY RTC ALARM
HDWR_RESET
EQU
08H CAUSE POWER-ON-RESET
EN_SUS_NMI
EQU
04H ENABLE SYSTEM SUSPEND NMI
REQ_POFF
EQU
02H REQUEST SYSTEM POWER OFF
EN_PON-ALRM
EQU
01H ENABLE POWER ON BY RTC ALARM
---------------------------------- --- - - - - --
;DMA PAGE REGISTERS
DMILPAGEl
DMA_PAGE2
DMA_PAGE3
EQU
EQU
EQU
83H
81H
82H
; DMA PAGE REGISTER CHANNEL 1
;
DMA PAGE REGISTER CHNL 2 (DSKT)
; DMA PAGE REGISTER CHANNEL 3
-------------------- -- - - - - - - - - - - - - - - - - - - - --
;MANUFACTURING PORTS
,
MFG_CHKPT
MFG_ERILHI
MFG_ERILLO
MEM_CTL
MEM_SUB~ODE
EQU
EQU
EQU
EQU
EQU
OA1H
OA2H
OA3H
80H
OIH
MFG CHECKPOINT PORT
MFG ERROR CODE PORT HIGH
MFG ERROR CODE PORT LOW
MEMORY DECODE CONTROL PORT
BIT SET IN MEMJTL FOR SPECIAL
MEM SUBSTITUTE OF LCD DISPLAY
RAM FOR MAIN MEM FOR MFG MODE
------------------------------- -- - -- - - - - - - - --
; I I 0 C H K - 8 0 8 7 CON T R 0 L - AOH
IONMLCNTL
EN_IOCHK
INLLEVEL
EQU
EQU
EQU
OAOH 1/0 CHAN CHK NMI ENABIDISAB
80H ; ENABLE 8087 AND 10 CHECK NMI
07H ; MASK FOR CURRENT IRPT LVL SNE
ROM BIOS 2-9