View source for CIO Registers (Summary)

[[Category:Electronic Component]]

* [[CIO Overview]]
* [[CIO Usage in KC Compact]]
* [[CIO Registers (Summary)]]
* [[CIO Registers (Detailed)]]

== Summary of CIO Registers (Index 00h..2Fh) ==

  00h - Master Interrupt Control Register (R/W)
  01h - Master Configuration Control Register (R/W)
  02h - Interrupt Vector Register Port A (R/W)
  03h - Interrupt Vector Register Port B (R/W)
  04h - Interrupt Vector Register Counter/Timers (R/W)
  05h - Data Path Polarity Register Port C (4 LSBs only) (R/W)
  06h - Data Direction Register Port C (4 LSBs only) (R/W)
  07h - Special I/O Control Register Port C (4 LSBs only)(R/W)
  08h - Port A Command and Status Register (Parts R/W)
  09h - Port B Command and Status Register (Parts R/W)
  0Ah - Counter/Timer 1 Command and Status (Parts R/W)
  0Bh - Counter/Timer 2 Command and Status (Parts R/W)
  0Ch - Counter/Timer 3 Command and Status (Parts R/W)
  0Dh - Port Data Register Port A (R/W) (directly addressable)
  0Eh - Port Data Register Port B (R/W) (directly addressable)
  0Fh - Port Data Register Port C (R/W) (directly addressable)
  10h - Counter/Timer 1 Current Count Register MSB (R)
  11h - Counter/Timer 1 Current Count Register LSB (R)
  12h - Counter/Timer 2 Current Count Register MSB (R)
  13h - Counter/Timer 2 Current Count Register LSB (R)
  14h - Counter/Timer 3 Current Count Register MSB (R)
  15h - Counter/Timer 3 Current Count Register LSB (R)
  16h - Counter/Timer 1 Time Constant Register MSB (R/W)
  17h - Counter/Timer 1 Time Constant Register LSB (R/W)
  18h - Counter/Timer 2 Time Constant Register MSB (R/W)
  19h - Counter/Timer 2 Time Constant Register LSB (R/W)
  1Ah - Counter/Timer 3 Time Constant Register MSB (R/W)
  1Bh - Counter/Timer 3 Time Constant Register LSB (R/W)
  1Ch - Counter/Timer 1 Mode Specification (R/W)
  1Dh - Counter/Timer 2 Mode Specification (R/W)
  1Eh - Counter/Timer 3 Mode Specification (R/W)
  1Fh - Current Vector Register (R)
  20h - Port A Mode Specification Register (R/W)
  21h - Port A Handshake Specification Register (R/W)
  22h - Data Path Polarity Register Port A (R/W)
  23h - Data Direction Register Port A (R/W)
  24h - Special I/O Control Register Port A (R/W)
  25h - Port A Pattern Polarity (PP) Register (R/W)
  26h - Port A Pattern Transition (PT) Register (R/W)
  27h - Port A Pattern Mask (PM) Register (R/W)
  28h - Port B Mode Specification Register (R/W)
  29h - Port B Handshake Specification Register (R/W)
  2Ah - Data Path Polarity Register Port B (R/W)
  2Bh - Data Direction Register Port B (R/W)
  2Ch - Special I/O Control Register Port B (R/W)
  2Dh - Port B Pattern Polarity (PP) Register (R/W)
  2Eh - Port B Pattern Transition (PT) Register (R/W)
  2Fh - Port B Pattern Mask (PM) Register (R/W)
  30h..3Fh - Reserved