ports.b

中断列表(4) 712K

	  data register write
Notes:	if register 1F6h/176h bit 0 = 0, controls drive selected by
	  register 1F3h/173h bits 3-2
	if register 1F6h/176h bit 0 = 1, controls drive not selected by
	  register 1F3h/173h bits 3-2, if register 1F3h/173h bit 7 = 1
SeeAlso: #P0536,#P0539

Bitfields for OPTi "Vendetta" IDE controller internal ID register:
Bit(s)	Description	(Table P0538)
 7	controller register access disable (write-only)
 6	controller register access disable until power-down or reset
	  (write-only)
 5-2	reserved (read-only)
 1-0	reserved (11, otherwise all controller register writes blocked)
SeeAlso: #P0540

Bitfields for OPTi "Vendetta" IDE controller control register:
Bit(s)	Description	(Table P0539)
 7	enable 1F0h-1F1h/170h-171h and 1F6h/176h bits 5-1 cycle timing
	  set for drive not selected by 1F3h/173h bits 3-2
 6-5	reserved (read-only)
 4	(primary IDE controller) minimum read wait states
	0 = 2 wait states
	1 = 1 wait states
	(secondary IDE controller) reserved
 3	enable 1F0h-1F1h/170h-171h cycle timing set for drive 1
 2	enable 1F0h-1F1h/170h-171h cycle timing set for drive 0
 1	reserved
 0	reserved (1) (read-only)
SeeAlso: #P0540,#P0541

Bitfields for OPTi "Vendetta" IDE controller strap register:
Bit(s)	Description	(Table P0540)
 7	reserved (1) (read-only)
 6-5	revision number (read-only)
	11 = chip revision in PCI configuration register 08h (see #00878)
	  (see #00931)
 4	(primary IDE controller) DINTR state (read-only)
	(secondary IDE controller) SDINTR state (read-only)
 3-2	(primary IDE controller only) IDE device cycle time (read-only)
	value determined by PCI config register 40h bits 1-0 (see #00931)
 1	reserved (1) (read-only)
 0	(primary IDE controller only) PCI CLK
	0 = 33 MHz
	1 = 25 MHz
SeeAlso: #P0539,#P0541,#P0538

Bitfields for OPTi "Vendetta" IDE controller miscellaneous register:
Bit(s)	Description	(Table P0541)
 7	reserved
 6	read prefetch enable
 5-4	address setup time between DRD#/DWR# active and
	  DA2-0/DCS3#/DCS1# - 1 LCLKs
 3-1	minimum number of LCLKs between DRDY# high and DRD#/DRW# inactive - 2
 0	cycle timing register switch (1F0h/170h and 1F1h/171h)
SeeAlso: #P0539,#P0540
----------P01F8------------------------------
PORT 01F8 - ???

01F8  RW  ???
		bit 0: A20 gate control (set = A20 enabled, clear = disabled)
----------P01F901FF--------------------------
PORT 01F9-01FF - PC radio by CoZet Info Systems
Range:	The I/O address range is dipswitch selectable from:
	   038-03F and 0B0-0BF
	   078-07F and 0F0-0FF
	   138-13F and 1B0-1BF
	   178-17F and 1F0-1FF
	   238-23F and 2B0-2BF
	   278-27F and 2F0-2FF
	   338-33F and 3B0-3BF
	   378-37F and 3F0-3FF
Notes:	All of these addresses show a readout of FFh in initial state.
	Once started, all of the addresses show	FBh, whatever might happen.
--------d-P0200------------------------------
PORT 0200 - Digidesign 'Session 8' HARD-DISK RECORDING SYSTEM
SeeAlso: PORT 0300h"Digidesign"
----------P0200020F--------------------------
PORT 0200-020F - Game port reserved I/O address space
0200-0207 - Game port, eight identical addresses on some boards

0201  R-  read joystick position and status (see #P0542)
0201  -W  fire joystick's four one-shots
0201  RW  gameport on mc-soundmachine, mc 03-04/1992: Adlib-compatible,
		Covox 'voice master' & 'speech thing' compatible soundcard.
		(enabled if bit1=1 in PORT 038Fh. Because it is disabled on
		power-on, it cannot be found by BIOS) (see PORT 0388h-038Fh)

Bitfields for joystick position and status:
Bit(s)	Description	(Table P0542)
 7	status B joystick button 2 / D paddle button
 6	status B joystick button 1 / C paddle button
 5	status A joystick button 2 / B paddle button
 4	status A joystick button 1 / A paddle button
 3	B joystick Y coordinate	   / D paddle coordinate
 2	B joystick X coordinate	   / C paddle coordinate
 1	A joystick Y coordinate	   / B paddle coordinate
 0	A joystick X coordinate	   / A paddle coordinate
----------P020002FF--------------------------
PORT 0200-02FF - Sunshine uPW48, programmer for EPROM version CPU's 8748/8749
Range:	4 bit DIP switch installable in the range 20x-2Fx

0200-0203	adresses of the 8255 on the uPW48
0208-020B	adresses of ??? on the uPW48 (all showing zeros)
----------P02080209--------------------------
PORT 0208-0209 - Intel 82C212B "Neat" chipset - EMS emulation control
Range:	may be set to 0208, 0218, 0258, 0268, 02A8, 02B8, 02E8
----------P0208020A--------------------------
PORT 0208-020A - Chips&Technologies 82C235 "SCAT" chipset - EMS PAGE REGISTERS
Range:	PORT 0208h or PORT 0218h, depending on configuration register 4Fh
	  (see #P0067)
SeeAlso: PORT 0022h"82C235"

0208  RW  EMS page register
0209  RW  EMS page register
020A  RW  EMS page register
----------P020C020F--------------------------
PORT 020C-020F - AIMS LAB PC Radio
Range:	configurable to PORT 020Ch or PORT 030Ch
Notes:	writing a value with bit 3 set to one of these ports turns on the
	  radio; writing a value with bit 3 clear turns it off
	PORT 020Eh bits 1 indicates status of some kind
----------P02100217--------------------------
PORT 0210-0217 - Expansion unit (XT)

0210  -W  latch expansion bus data
0210  R-  verify expansion bus data
0211  -W  clear wait, test latch
0211  R-  High byte data address
0212  R-  Low byte data address
0213  -W  0=enable,  1=disable expansion unit
0214  -W  latch data  (receiver card port)
0214  R-  read data   (receiver card port)
0215  R-  High byte of address, then Low byte	(receiver card port)
----------P02100211--------------------------
PORT 0210-0211 - Game Blaster
Range:	PORT 02x0h-02x1h, x=1,2,...

0210  -W  register index
0211  ?W  register data
----------P02180219--------------------------
PORT 0218-0219 - Intel 82C212B "Neat" chipset - EMS emulation control
Range:	base address may be set to 0208, 0218, 0258, 0268, 02A8, 02B8, or 02E8
----------P0218021A--------------------------
PORT 0218-021A - Chips&Technologies 82C235 "SCAT" chipset - EMS PAGE REGISTERS
Range:	PORT 0208h or PORT 0218h, depending on configuration register 4Fh
	  (see #P0067)
SeeAlso: PORT 0022h"82C235"

0218  RW  EMS page register
0219  RW  EMS page register
021A  RW  EMS page register
----------P02200223--------------------------
PORT 0220-0223 - Sound Blaster / Adlib port (Stereo)
SeeAlso: PORT 0388h-0389h

0220  R-  Left speaker -- Status port
0220  -W  Left speaker -- Address port
0221  -W  Left speaker -- Data port
0222  R-  Right speaker -- Status port
0222  -W  Right speaker -- Address port
0223  -W  Right speaker -- Data port
----------P02200227--------------------------
PORT 0220-0227 - Soundblaster PRO and SSB 16 ASP
----------P02200228--------------------------
PORT 0220-0228 - C&T 82C570 CHIPSlink '3270' Protocol Controller
!!!chips\82c570.pdf p.7
----------P0220022F--------------------------
PORT 0220-022F - Soundblaster PRO 2.0
----------P0220022F--------------------------
PORT 0220-022F - Soundblaster PRO 4.0
Note:	the FM music is accessible on 0388/0389 for compatibility.

0220  R-  left FM status port
0220  -W  left FM music register address port (index)
0221  RW  left FM music data port
0222  R-  right FM status port
0222  -W  right FM music register address port (index)
0223  RW  right FM music data port
0224  -W  mixer register address port (index) (see #P0543)
0225  RW  mixer data port
0226  -W  DSP reset
0228  R-  FM music status port
0228  -W  FM music register address port (index)
0229  -W  FM music data port
022A  R-  DSP read data (voice I/O and Midi)
022C  -W  DSP write data / write command
022C  R-  DSP write buffer status (bit 7)
022E  R-  DSP data available status (bit 7)

(Table P0543)
Values for SB Mixer register index:
 Index	Description		PORT 0225h data
 00h	reset			00h = zero all mixer controls
 04h	voice select		high nybble = left, low nybble = right
 0Ah	microphone gain		bits 2-0 = gain
 22h	master gain		high nybble = left, low nybble = right
 26h	MIDI gain		high nybble = left, low nybble = right
 28h	CD gain			high nybble = left, low nybble = right
 2Eh	Line In			high nybble = left, low nybble = right
 30h	Master Left		bits 7-3 = volume
 31h	Master Right		bits 7-3 = volume
 32h	Voice Left		bits 7-3 = volume
 33h	Voice Right		bits 7-3 = volume
 34h	MIDI Left		bits 7-3 = volume
 35h	MIDI Right		bits 7-3 = volume
 36h	CD Left			bits 7-3 = volume
 37h	CD Right		bits 7-3 = volume
 38h	LineIn Left		bits 7-3 = volume
 39h	LineIn Right		bits 7-3 = volume
 3Ah	Microphone		bits 7-3 = gain
 3Bh	PC speaker		bits 7-3 = volume
 3Ch	Sound Output		highest set bit is enabled source (see #P0544)
 3Dh	Sound Source (left)	highest set bit is enabled source (see #P0544)
 3Eh	Sound Source (right)	highest set bit is enabled source (see #P0544)
 40h	In gain			bits 7-6 = gain
				   (00 = x1, 01 = x2, 10 = x4, 11 = x8)
 41h	Out gain (left)		bits 7-6 = gain (as for In)
 42h	Out gain (right)	bits 7-6 = gain (as for In)
 43h	Automatic Gain Control	bit 0 = enable
 44h	Treble (left)		bits 7-3 = volume
 45h	Treble (right)		bits 7-3 = volume
 46h	Bass (left)		bits 7-3 = volume
 47h	Bass (right)		bits 7-3 = volume

Bitfields for SB Mixer sound source:
Bit(s)	Description	(Table P0544)
 7	PC speaker???
 6	MIDI left
 5	MIDI right
 4	LineIn left
 3	LineIn right
 2	CD left
 1	CD right
 0	microphone		
Note:	bits 7-5 are ignored for Sound Output register
SeeAlso: #P0543
----------P022B------------------------------
PORT 022B - GI1904 Scanner Interface Adapter
Range:	PORT 026Bh, PORT 02ABh (default), PORT 02EBh, PORT 032Bh, PORT 036Bh
Range:	PORT 03ABh, PORT 03EBh
----------P022C------------------------------
PORT 022C - GS-IF Scanner Interface adapter
Range:	PORT 022Ch, PORT 026Ch, PORT 02ACh, PORT 02ECh (default),
	  PORT 032Ch, PORT 036Ch, PORT 03ACh, PORT 03ECh
Note:	many SPI 400dpi/800dpi gray / H/T handy scanner by Marstek, Mustek and
	  others use this interface
----------P022F------------------------------
PORT 022F - mc-soundmachine, mc 03-04/1992 - SPEECH I/O
Note:	An Adlib-compatible Covox 'voice master' & 'speech thing' compatible
	  soundcard
SeeAlso: PORT 0378h"Covox",PORT 0388h-038Fh"soundmachine"

022F  RW  Covox compatible speech I/O  (via internal A/D converter,
		each read access starts a new conversion cycle)
		register enabled if bit7=1 in PORT 038Fh
----------P02300233--------------------------
PORT 0230-0233 - Adaptec 154xB/154xC SCSI adapter.
Range:	four ports at any of 0130, 0134, 0230, 0234, 0330 (default) or 0334
----------P02340237--------------------------
PORT 0234-0237 - Adaptec 154xB/154xC SCSI adapter.
Range:	four ports at any of 0130, 0134, 0230, 0234, 0330 (default) or 0334
----------P0238023F--------------------------
PORT 0238-023F - COM port addresses on UniRAM card by German magazine c't
		selectable from 238, 2E8, 2F8, 338, 3E0, 3E8, 3F8
----------P0238023B--------------------------
PORT 0238-023B - Bus Mouse Port (secondary address)
InstallCheck: read the ID Port twice; if installed, the first byte
	  returned will be DEh, and the second will vary by card
	  (revision number???)
Note:	secondary address for bus mice from MS and Logitech, and the ATI
	  video adapter mouse
SeeAlso: PORT 023Ch"Mouse"

0238  ?W  Command port
0239  ?W  Data port
023A  R?  ID Port 
----------P023C023F--------------------------
PORT 023C-023F - Bus Mouse Port (primary address)
InstallCheck: read the ID Port twice; if installed, the first byte
	  returned will be DEh, and the second will vary by card
	  (revision number???)
Note:	primary address for bus mice from MS and Logitech, the ATI video
	  adapter mouse, and the Commodore PC30III bus mouse
SeeAlso: PORT 0238h"Mouse"

023C  ?W  Command port
023D  ?W  Data port
023E  R?  ID Port 
----------P0240024F--------------------------
PORT 0240-024F - Gravis Ultra Sound by Advanced Gravis
Range:	The I/O address range is dipswitch selectable from:
	   0200-020F and 0300-030F
	   0210-021F and 0310-031F
	   0220-022F and 0320-032F
	   0230-023F and 0330-033F
	   0240-024F and 0340-034F
	   0250-025F and 0350-035F
	   0260-026F and 0360-036F
	   0270-027F and 0370-037F
SeeAlso: PORT 0340h-034Fh,PORT 0746h

0240  -W  Mix Control register (see #P0545)
0241  R-  Read Data
0241  -W  Trigger Timer
0246  R-  IRQ Status Register (see #P0546)
0248  RW  Timer Control Reg
	  Same as ADLIB Board (see PORT 0200h)
0249  -W  Timer Data (see #P0547)
024B  -W  IRQ Control Register (0240 bit 6 = 1) (see #P0548)
024B  -W  DMA Control Register (0240 bit 6 = 0) (see #P0549)
024F  RW  Register Controls (rev 3.4+)

Bitfields for Gravis Ultra Sound mix control register:
Bit(s)	Description	(Table P0545)
 6	   Control Register Select (see 024B)
 5	   Enable MIDI Loopback
 4	   Combine GF1 IRQ with MIDI IRQ
 3	   Enable Latches
 2	   Enable MIC IN
 1	   Disable LINE OUT
 0	   Disable LINE IN
SeeAlso: #P0546

Bitfields for Gravis Ultra Sound IRQ status register:
Bit(s)	Description	(Table P0546)
 7	   DMA TC IRQ
 6	   Volume Ramp IRQ
 5	   WaveTable IRQ
 3	   Timer 2 IRQ
 2	   Timer 1 IRQ
 1	   MIDI Receive IRQ
 0	   MIDI Transmit IRQ
SeeAlso: #P0545,#P0548,#P0549

Bitfields for Gravis Ultra Sound timer data:
Bit(s)	Description	(Table P0547)
 7	   Reset Timr IRQ
 6	   Mask Timer 1
 5	   Mask Timer 2