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base:io_addresses [2014-06-10 13:15]
127.0.0.1 external edit
base:io_addresses [2015-04-17 04:32] (current)
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 +====== IO addresses ======
  
 +Taken from [[http://​ide64.org/​io_stnd.txt]].
 +
 +FIXME FTC says: I think the PASSPORT and SIEL+JMS interfaces are mixed up in this doc. Both the documentation by GRG and the source of MidiSlave specifies these two interfaces differently.
 +
 +<​code>​
 +Revision 10.9.2003
 +
 +                C64 - IO addresses, standard for the development
 +                -----------------------------------------------
 +                           by Tomas Pribyl (C)1998-2003
 +                           ​-----------------------
 +
 +
 +   IO_1 area -  Address range $de00 - $deff
 +   ​=======================================
 +   $de00 - $de0f  DUART (RS-232 card)
 +   ​MC68681
 +   $de00 - $de0f - The card registers (R or R/W)
 +
 +   ​======================================================
 +   $de00 - $de03  Swiftlink, ACia card (fast serial port)
 +   6551
 +   $de00 - Transmit Data Register ​ (W)
 +   $de00 - Receive Data Register (R)
 +   $de01 - Status Register (R/W)
 +   $de02 - Command Register (R/W)
 +   $de03 - Control Register (R/W)
 +
 +   ​======================================================
 +   $de00 - $de03  Midi interface sequential
 +   ​Motorola 6850
 +   $de00 - Control register (W)
 +   $de01 - Transmit data register (W)
 +   $de02 - Status register (R)
 +   $de03 - Receive data register (R)
 +
 +   ​======================================================
 +   $de04 - $de07  Midi interface Passport
 +   ​Motorola 6850
 +   $de04 - Control register (W)
 +   $de05 - Transmit data register (W)
 +   $de06 - Status register (R)
 +   $de07 - Receive data register (R)
 +
 +   ​======================================================
 +   $de08 - $de09  Midi interface Siel/JMS
 +   ​Motorola 6850
 +   $de08 - Control register (W)
 +   $de08 - Status register (R)
 +   $de09 - Transmit data register (W)
 +   $de09 - Receive data register (R)
 +
 +   ​======================================================
 +   $de10 - $de0f  ETH64 (Ethernet card)
 +   ​LAN91C96
 +   $de10 - $de0d - Bank registers (R and R/W)
 +   $de0e - Bank select registers (R/W 2B)
 +
 +   ​======================================================
 +   $de20 - $de31  IDE64 HDD
 +   IDE CHIP
 +   $de20 - $de27  Primary HDD Registers
 +   $de28 - $de2f  Secondary HDD Registers
 +   $de30 - Low Data HDD register
 +   $de31 - High Data HDD register
 +   $de32 - > d7 - 0
 +             d6 - 0
 +             d5 - 0
 +             d4 - 1  ;version number #$01
 +             d3 - romaddr15
 +             d2 - romaddr14
 +             d1 - game
 +             d0 - exrom
 +   $de32 - $de35  IDE64 ROM bank select registers
 +
 +   ​======================================================
 +   $de38 - $de39  FAST SERIAL NET
 +   Intel 8251 USART
 +   $de38 - Transmit data register (W)
 +   $de38 - Receive data register (R)
 +   $de39 - Control register (W)
 +   $de39 - Status register (R)
 +
 +   ​======================================================
 +   $de40 - $de43  HexCard ports (W or R/W)
 +
 +   ​======================================================
 +   $de5f - Clock IDE64 (R/W) (bit 0) 
 +   $defb - IDE64 clock reset, kill the cartridge (W)
 +   $defc - $deff  IDE64 ROM configuration registers (W)
 +
 +   ​======================================================
 +   $de60 - $deff  Software for IDE64 cartridge serving (R)
 +
 +
 +
 +
 +   IO_2 area - Address range $df00 - $dfff
 +   ​======================================
 +
 +   $df00 - $df0a   Ram Expansion Unit
 +   REU 1700, 1764, 1750
 +   $df00 - Status Register (R)
 +   $df01 - Command Register (R/W)
 +   $df02 - C64 Base Address Register (low)  (R/W)
 +   $df03 - C64 Base Address Register (high) (R/W)
 +   $df04 - $df06 - REU Base Address Register (R/W)
 +   $df07 - $df08 - Transfer Lenght Register ​ (R/W)
 +   $df09 - Interrupt mask register (R/W)
 +   $df0a - Address control register
 +
 +   !!! NOTE: REU registers are mirrored in whole IO_2 AREA!!!!
 +   !!! Use some address decoders for decoding area $df00-$df0a!!!
 +   
 +</​code>​
base/io_addresses.txt ยท Last modified: 2015-04-17 04:32 (external edit)