Difference between revisions of "I/O Port Summary"

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{|{{Prettytable|width: 700px; font-size: 2em;}}
 
{|{{Prettytable|width: 700px; font-size: 2em;}}
−
|''I/O''||''Decoded as''||''Port''||''Read''||''Write''  
+
|'''I/O'''||'''Decoded as'''||'''Port'''||'''Read'''||'''Write'''
 +
|-
 +
|#78XX||?||[[CPC4MB|4Mb Memory extension]]||?||Write
 +
|-
 +
|#79XX||?||[[CPC4MB|4Mb Memory extension]]||?||Write
 +
|-
 +
|#7AXX||?||[[CPC4MB|4Mb Memory extension]]||?||Write
 +
|-
 +
|#7BXX||?||[[CPC4MB|4Mb Memory extension]]||?||Write
 +
|-
 +
|#7CXX||?||[[CPC4MB|4Mb Memory extension]]||?||Write
 +
|-
 +
|#7DXX||?||[[CPC4MB|4Mb Memory extension]]||?||Write
 +
|-
 +
|#7EXX||?||[[CPC4MB|4Mb Memory extension]]||?||Write
 +
|-
 +
|#7FXX||?||[[CPC4MB|4Mb Memory extension]]||?||Write
 
|-
 
|-
 
|#7FXX||%0xxxxxxx xxxxxxxx||[[Gate Array]]|| ||Write
 
|#7FXX||%0xxxxxxx xxxxxxxx||[[Gate Array]]|| ||Write
Line 13: Line 29:
 
|-
 
|-
 
|#BFXX||%x0xxxx11 xxxxxxxx||6845 [[CRTC]] Video-Address-Register||Read|| -  
 
|#BFXX||%x0xxxx11 xxxxxxxx||6845 [[CRTC]] Video-Address-Register||Read|| -  
 +
|-
 +
|#BFFE||?||[[TMPI speech synthetizer]]??? |||| -
 
|-
 
|-
 
|#DFXX||%xx0xxxxx xxxxxxxx||select ROM|| - ||Write
 
|#DFXX||%xx0xxxxx xxxxxxxx||select ROM|| - ||Write
Line 26: Line 44:
 
|#F7XX||%xxxx0x11 xxxxxxxx||8255 PIO Control-Register|| - ||Write
 
|#F7XX||%xxxx0x11 xxxxxxxx||8255 PIO Control-Register|| - ||Write
 
|-
 
|-
−
|#F8B0||?||Vidi-CPC Video-Digitiser||?||?
+
|#F8B0||?||[[VIDI digitizer|Vidi-CPC Video-Digitiser]]||?||?
 
|-
 
|-
−
|#F8B1||?||Vidi-CPC Video-Digitiser||?||?
+
|#F8B1||?||[[VIDI digitizer|Vidi-CPC Video-Digitiser]]||?||?
 
|-
 
|-
−
|#F8DC - #F8DD||?||CPCI Serial Interface||Read||Write
+
|#F8DC - #F8DD||?||[[CPCI RS232 Interface|CPCI Serial Interface]]||Read||Write
 +
|-
 +
|#F8E0||?||[[DHCP Midi Interface]]||Read||Write
 
|-
 
|-
 
|#F8E0||?||Z80 STI Indirect Data Register||Read||Write
 
|#F8E0||?||Z80 STI Indirect Data Register||Read||Write
 
|-
 
|-
 
|#F8E1||?||Z80 STI Gen. Purpose I/O Interrupt||Read||Write
 
|#F8E1||?||Z80 STI Gen. Purpose I/O Interrupt||Read||Write
 +
|-
 +
|#F8E6||?||Port A - [[IDE8255]]||?||?
 +
|-
 +
|#F8E7||?||Port C - [[IDE8255]]||?||?
 
|-
 
|-
 
|#F8E8||?||Z80 STI Pointer Vector Register||Read||Write
 
|#F8E8||?||Z80 STI Pointer Vector Register||Read||Write
 
|-
 
|-
−
|#F8E8||?||Music Machine|| - ||Write
+
|#F8E8||?||[[Music Machine]]|| - ||Write
 
|-
 
|-
 
|#F8EC||?||Z80 STI USART Control Register||Read||Write
 
|#F8EC||?||Z80 STI USART Control Register||Read||Write
 
|-
 
|-
−
|#F8EC||?||Music Machine|| - ||Write
+
|#F8EC||?||[[Music Machine]]|| - ||Write
 
|-
 
|-
 
|#F8ED||?||Z80 STI Receiver Status Register||Read||Write
 
|#F8ED||?||Z80 STI Receiver Status Register||Read||Write
Line 50: Line 74:
 
|#F8EF||?||Z80 STI USART Data Register||Read||Write
 
|#F8EF||?||Z80 STI USART Data Register||Read||Write
 
|-
 
|-
−
|#F8EF||?||Music Machine||Read|| -  
+
|#F8EF||?||[[Music Machine]]||Read|| -  
 
|-
 
|-
−
|#F8E2 - #F8E4||?||Dobbertin Eprommer 4003||?||?
+
|#F8E2 - #F8E4||?||[[Universeller EPROM Programmer 4004|Dobbertin Eprommer 4003]]||?||?
 
|-
 
|-
−
|#F8F0||?||Music Machine|| - ||Write
+
|#F8F0||?||[[Music Machine]]|| - ||Write
 
|-
 
|-
−
|#F8F2||?||Dobbertin Eprommer 4003||?||?
+
|#F8F2||?||[[EMR MIDI Interface]]|| - ||Write
 
|-
 
|-
−
|#F8F4||?||Music Machine||Read|| -
+
|#F8F2||?||[[Universeller EPROM Programmer 4004|Dobbertin Eprommer 4003]]||?||?
 
|-
 
|-
−
|#F8F8||?||Music Machine|| - ||Write
+
|#F8F4||?||[[Music Machine]]||Read|| -
 
|-
 
|-
−
|#F8FF||%1111100x 111xxxxx||CPCISA control port|| - ||Write
+
|#F8F8||?||[[Music Machine]]|| - ||Write
 
|-
 
|-
−
|#F9B0||?||Vidi-CPC Video-Digitiser||?||?
+
|#F8FF||%1111100x 111xxxxx||[[CPCISA by Yarek|CPCISA control port]]|| - ||Write
 
|-
 
|-
−
|#F9FC - #F9FE||?||Otten & Fecht 1 MB RAM-Disc||?||?
+
|#F9B0||?||[[VIDI digitizer|Vidi-CPC Video-Digitiser]]||?||?
 +
|-
 +
|#F9E6||?||Port B - [[IDE8255]]||?||?
 +
|-
 +
|#F9E7||?||RS Port - [[IDE8255]]||?||?
 +
|-
 +
|#F9F7||?||[[Grafpad II|Hegotron grafpad II]]||?||?
 +
|-
 +
|#F9FC - #F9FE||?||Otten & Fecht 1 MB RAM-Disc||Read||Write
 +
|-
 +
|#F9FF||?||[[Grafpad II|Hegotron grafpad II]]||?||?
 
|-
 
|-
 
|#FA7E||%xxxxxx0x0 0xxxxxxx||Floppy Motor Control|| - ||Write
 
|#FA7E||%xxxxxx0x0 0xxxxxxx||Floppy Motor Control|| - ||Write
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|-
 
|-
 
|#FADF||?||Z80-SIO / DART port B Control Reg.||Read||Write
 
|#FADF||?||Z80-SIO / DART port B Control Reg.||Read||Write
 +
|-
 +
|#FAE6||?||Port A - [[IDE8255]]||?||?
 +
|-
 +
|#FAE7||?||Port C - [[IDE8255]]||?||?
 
|-
 
|-
 
|#FB7E||%xxxxxx0x1 0xxxxxx0||765 FDC (internal) Status Register||Read|| -  
 
|#FB7E||%xxxxxx0x1 0xxxxxx0||765 FDC (internal) Status Register||Read|| -  
 
|-
 
|-
 
|#FB7F||%xxxxxx0x1 0xxxxxx1||765 FDC (internal) Data Register||Read||Write
 
|#FB7F||%xxxxxx0x1 0xxxxxx1||765 FDC (internal) Data Register||Read||Write
 +
|-
 +
|#FBBD||?||Ram select mode [[Vortex Expansions RAM card|Vortex SP512]]||?||Write
 
|-
 
|-
 
|#FBDC||?||8253 Timer counter 0||Read||Write
 
|#FBDC||?||8253 Timer counter 0||Read||Write
Line 99: Line 139:
 
|-
 
|-
 
|#FBE4||?||Hard Disc Reset||Read||Write
 
|#FBE4||?||Hard Disc Reset||Read||Write
 +
|-
 +
|#FBxx||?||[[Real Time Clock]]||?||?
 
|-
 
|-
 
|#FBE0 - #FBE3||?||dk'tronics RTC.||?||?
 
|#FBE0 - #FBE3||?||dk'tronics RTC.||?||?
 +
|-
 +
|#FBE6||?||Port B - [[IDE8255]]||?||?
 +
|-
 +
|#FBE7||?||RS Port - [[IDE8255]]||?||?
 
|-
 
|-
 
|#FBE8||?||dk'tronics RTC.||?||?
 
|#FBE8||?||dk'tronics RTC.||?||?
 
|-
 
|-
−
|#FBEE||?||SSA1 dk'tronics Speech-Module||Read||Write
+
|#FBEE||?||[[Amstrad SSA-1 Speech Synthesizer]]||Read||Write
 
|-
 
|-
−
|#FBF0 - #FBFF||?||Otten & Fecht 1 MB RAM-Disc||?||?
+
|#FBF0 - #FBFF||?||Otten & Fecht 1 MB RAM-Disc||Read||Write
 
|-
 
|-
 
|#FBF6||?||765 FDC (Vortex,ext) Status Register||Read|| -  
 
|#FBF6||?||765 FDC (Vortex,ext) Status Register||Read|| -  
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|#FBF7||?||765 FDC (Vortex,ext) Data Register||Read||Write
 
|#FBF7||?||765 FDC (Vortex,ext) Data Register||Read||Write
 
|-
 
|-
−
|#FC00 - #FDFF||%1111110x xxxxxxxx||CPCISA 16bits mode high byte latch||Read||Write
+
|#FC00 - #FDFF||%1111110x xxxxxxxx||[[CPCISA by Yarek|CPCISA]] 16bits mode high byte latch||Read||Write
 +
|-
 +
|#FCE6||?||Port A - [[IDE8255]]||Read||Write
 +
|-
 +
|#FCE7||?||Port C - [[IDE8255]]||Read||Write
 
|-
 
|-
 
|#FD00 - #FD3F||%11111101 00xxxxxx||[[Programming:SYMBiFACE_II|SYMBiFACE II]]||Read||Write
 
|#FD00 - #FD3F||%11111101 00xxxxxx||[[Programming:SYMBiFACE_II|SYMBiFACE II]]||Read||Write
 
|-
 
|-
−
|#FE00 - #FFFF||%1111111x xxxxxxxx||CPCISA I/O access (low byte)||Read||Write
+
|#FDE6||?||Port B - [[IDE8255]]||Read||Write
 +
|-
 +
|#FDE7||?||RS Port - [[IDE8255]]||Read||Write
 +
|-
 +
|#FE00 - #FFFF||%1111111x xxxxxxxx||[[CPCISA by Yarek|CPCISA]] I/O access (low byte)||Read||Write
 +
|-
 +
|#FEE6||?||Port A - [[IDE8255]]||Read||Write
 +
|-
 +
|#FEE7||?||Port C - [[IDE8255]]||Read||Write
 +
|-
 +
|#FEE8||?||[[Multiface II]]||?||?
 +
|-
 +
|#FEEA||?||[[Multiface II]]||?||?
 +
|-
 +
|#FFXX||%11111111 xxxxxxxx||[[CPC Booster]] (XX=#00..#28 are used now)||Read||Write
 
|-
 
|-
−
|#FEE8||?||Multiface II||?||?
+
|#FF50||?||[[Amdrum]]||?||Write
 
|-
 
|-
−
|#FEEA||?||Multiface II||?||?
+
|#FFE6||?||Port B - [[IDE8255]]||Read||Write
 
|-
 
|-
−
|#FFXX||%11111111 xxxxxxxx||CPC Booster (XX=#00..#28 are used now)||Read||Write
+
|#FFE7||?||RS Port - [[IDE8255]]||Read||Write
 
|-
 
|-
 
|}
 
|}

Revision as of 01:43, 23 September 2009

The is a list of all known I/O ports of the Amstrad CPC.

I/O Decoded as Port Read Write
#78XX ? 4Mb Memory extension ? Write
#79XX ? 4Mb Memory extension ? Write
#7AXX ? 4Mb Memory extension ? Write
#7BXX ? 4Mb Memory extension ? Write
#7CXX ? 4Mb Memory extension ? Write
#7DXX ? 4Mb Memory extension ? Write
#7EXX ? 4Mb Memory extension ? Write
#7FXX ? 4Mb Memory extension ? Write
#7FXX %0xxxxxxx xxxxxxxx Gate Array Write
#BCXX %x0xxxx00 xxxxxxxx 6845 CRTC Address-Register - Write
#BDXX %x0xxxx01 xxxxxxxx 6845 CRTC Data-Register - Write
#BEXX %x0xxxx10 xxxxxxxx 6845 CRTC Status-Register Read -
#BFXX %x0xxxx11 xxxxxxxx 6845 CRTC Video-Address-Register Read -
#BFFE ? TMPI speech synthetizer??? -
#DFXX %xx0xxxxx xxxxxxxx select ROM - Write
#EFXX %xxx0xxxx xxxxxxxx Printer Port - Write
#F4XX %xxxx0x00 xxxxxxxx 8255 PIO Port A Read Write
#F5XX %xxxx0x01 xxxxxxxx 8255 PIO Port B Read -
#F6XX %xxxx0x10 xxxxxxxx 8255 PIO Port C - Write
#F7XX %xxxx0x11 xxxxxxxx 8255 PIO Control-Register - Write
#F8B0 ? Vidi-CPC Video-Digitiser ? ?
#F8B1 ? Vidi-CPC Video-Digitiser ? ?
#F8DC - #F8DD ? CPCI Serial Interface Read Write
#F8E0 ? DHCP Midi Interface Read Write
#F8E0 ? Z80 STI Indirect Data Register Read Write
#F8E1 ? Z80 STI Gen. Purpose I/O Interrupt Read Write
#F8E6 ? Port A - IDE8255 ? ?
#F8E7 ? Port C - IDE8255 ? ?
#F8E8 ? Z80 STI Pointer Vector Register Read Write
#F8E8 ? Music Machine - Write
#F8EC ? Z80 STI USART Control Register Read Write
#F8EC ? Music Machine - Write
#F8ED ? Z80 STI Receiver Status Register Read Write
#F8EE ? Z80 STI Transmitter Status Register Read Write
#F8EF ? Z80 STI USART Data Register Read Write
#F8EF ? Music Machine Read -
#F8E2 - #F8E4 ? Dobbertin Eprommer 4003 ? ?
#F8F0 ? Music Machine - Write
#F8F2 ? EMR MIDI Interface - Write
#F8F2 ? Dobbertin Eprommer 4003 ? ?
#F8F4 ? Music Machine Read -
#F8F8 ? Music Machine - Write
#F8FF %1111100x 111xxxxx CPCISA control port - Write
#F9B0 ? Vidi-CPC Video-Digitiser ? ?
#F9E6 ? Port B - IDE8255 ? ?
#F9E7 ? RS Port - IDE8255 ? ?
#F9F7 ? Hegotron grafpad II ? ?
#F9FC - #F9FE ? Otten & Fecht 1 MB RAM-Disc Read Write
#F9FF ? Hegotron grafpad II ? ?
#FA7E %xxxxxx0x0 0xxxxxxx Floppy Motor Control - Write
#FADC ? Z80-SIO / DART port A Data Register Read Write
#FADD ? Z80-SIO / DART port A Control Reg. Read Write
#FADE ? Z80-SIO / DART port B Data Register Read Write
#FADF ? Z80-SIO / DART port B Control Reg. Read Write
#FAE6 ? Port A - IDE8255 ? ?
#FAE7 ? Port C - IDE8255 ? ?
#FB7E %xxxxxx0x1 0xxxxxx0 765 FDC (internal) Status Register Read -
#FB7F %xxxxxx0x1 0xxxxxx1 765 FDC (internal) Data Register Read Write
#FBBD ? Ram select mode Vortex SP512 ? Write
#FBDC ? 8253 Timer counter 0 Read Write
#FBDD ? 8253 Timer counter 1 Read Write
#FBDE ? 8253 Timer counter 2 Read Write
#FBDF ? 8253 Timer Modus Select - Write
#FBE0 ? Hard Disc Data Port Read Write
#FBE1 ? Hard Disc Status, Reset Read Write
#FBE2 ? Hard Disc Select, Configuration Read Write
#FBE3 ? Hard Disc DMA, Interrupt Read Write
#FBE4 ? Hard Disc Reset Read Write
#FBxx ? Real Time Clock ? ?
#FBE0 - #FBE3 ? dk'tronics RTC. ? ?
#FBE6 ? Port B - IDE8255 ? ?
#FBE7 ? RS Port - IDE8255 ? ?
#FBE8 ? dk'tronics RTC. ? ?
#FBEE ? Amstrad SSA-1 Speech Synthesizer Read Write
#FBF0 - #FBFF ? Otten & Fecht 1 MB RAM-Disc Read Write
#FBF6 ? 765 FDC (Vortex,ext) Status Register Read -
#FBF7 ? 765 FDC (Vortex,ext) Data Register Read Write
#FC00 - #FDFF %1111110x xxxxxxxx CPCISA 16bits mode high byte latch Read Write
#FCE6 ? Port A - IDE8255 Read Write
#FCE7 ? Port C - IDE8255 Read Write
#FD00 - #FD3F %11111101 00xxxxxx SYMBiFACE II Read Write
#FDE6 ? Port B - IDE8255 Read Write
#FDE7 ? RS Port - IDE8255 Read Write
#FE00 - #FFFF %1111111x xxxxxxxx CPCISA I/O access (low byte) Read Write
#FEE6 ? Port A - IDE8255 Read Write
#FEE7 ? Port C - IDE8255 Read Write
#FEE8 ? Multiface II ? ?
#FEEA ? Multiface II ? ?
#FFXX %11111111 xxxxxxxx CPC Booster (XX=#00..#28 are used now) Read Write
#FF50 ? Amdrum ? Write
#FFE6 ? Port B - IDE8255 Read Write
#FFE7 ? RS Port - IDE8255 Read Write

CPCISA ports for ISA cards

Device PC I/O range CPCISA high CPCISA low
IDE1 1F0h..1F7h #FDF0..#FDF7 #FFF0..#FFF7
IDE2 170h..177h #FD70..#FD77 #FF70..#FF77
Joystick 201h..201h #FC01..#FC01 #FE01..#FE01
Ethernet 210h..21Fh #FC10..#FC1F #FE10..#FE1F
Sound Blaster 220h..23Fh #FC20..#FC3F #FE20..#FE3F
LPT2 278h..27Fh #FC78..#FC7F #FE78..#FE7F
COM1 2F8h..2FFh #FCF8..#FCFF #FEF8..#FEFF
MIDI' 300h..301h #FD00..#FD01 #FF00..#FF01
MIDI 330h..331h #FD30..#FD31 #FF30..#FF31
Sound control 370h..371h #FD70..#FD71 #FF70..#FF71
FDC1 372h..377h #FD72..#FD77 #FF72..#FF77
LPT1 378h..37Fh #FD78..#FD7F #FF78..#FF7F
Sound AD-LIB 388h..38Bh #FD88..#FD8B #FF88..#FF8B
VGA 3B0h..3BBh #FDB0..#FDBB #FFB0..#FFBB
LPT3 3BCh..3BFh #FDBC..#FDBF #FFBC..#FFBF
VGA 3C0h..3DFh #FDC0..#FDCF #FFC0..#FFCF
FDC1 3F2h..3F7h #FDF2..#FDF7 #FFF2..#FFF7
COM1 3F8h..3FFh #FDF8..#FDFF #FFF8..#FFFF

CPCISA ports for ISA motherboard

Device PC I/O range CPCISA high CPCISA low
DMA 000h..00Fh #FC00..#FC0F #FE00..#FE0F
interrupt 020h..03Fh #FC20..#FC3F #FE20..#FE3F
counter 040h..05Fh #FC40..#FC5F #FE40..#FE5F
keyboard 060h..067h #FC60..#FC67 #FE60..#FE67
RTC 070h..071h #FC70..#FC71 #FE70..#FE71
DMA 080h..08Fh #FC80..#FC8F #FE80..#FE8F
DMA 0C0h..0DFh #FCC0..#FCDF #FEC0..#FEDF
interrupt 0A0h..0BFh #FCA0..#FCBF #FEA0..#FEBF
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