Difference between revisions of "SYMBiFACE II:I/O Map Summary"

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{|{{Prettytable|width: 700px; font-size: 2em;}}
 
{|{{Prettytable|width: 700px; font-size: 2em;}}
 
|'''Port''' || '''Read''' || '''Write'''
 
|'''Port''' || '''Read''' || '''Write'''
 +
|-
 +
|'''#7Fxx''' ||N/A ||Standard RAM Expansion (512K)
 +
|-
 +
|'''#FD00-#FD05''' ||? ||?
 
|-
 
|-
 
|'''#FD06''' ||IDE Alternate Status ||IDE Digital Output
 
|'''#FD06''' ||IDE Alternate Status ||IDE Digital Output
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|-
 
|-
 
|'''#FD10''' ||PS/2 Mouse Status||Write: Not used
 
|'''#FD10''' ||PS/2 Mouse Status||Write: Not used
 +
|-
 +
|'''#FD11''' ||ROM Enable SYMBiFACE II roms||ROM Disable all SYMBiFACE II Roms
 +
|-
 +
|'''#FD12-#FD13''' ||? ||?
 
|-
 
|-
 
|'''#FD14''' ||RTC Data ||RTC Data
 
|'''#FD14''' ||RTC Data ||RTC Data
 
|-
 
|-
 
|'''#FD15''' ||Read: Not used ||RTC Index
 
|'''#FD15''' ||Read: Not used ||RTC Index
 +
|-
 +
|'''#FD16''' ||? ||?
 +
|-
 +
|'''#FD17''' ||ROM Map upper ROM to 4000h-7FFFh (for writing to FLASH ROMs)||ROM Don't map ROM to 4000h-7FFFh (default)
 +
|-
 +
|'''#FD17-#FD3F''' ||? ||?
 
|}
 
|}

Revision as of 03:15, 12 February 2010

Port Read Write
#7Fxx N/A Standard RAM Expansion (512K)
#FD00-#FD05 ? ?
#FD06 IDE Alternate Status IDE Digital Output
#FD07 IDE Drive Address Write: Not Used
#FD08 IDE Data Register IDE Data Register
#FD09 IDE Error Register IDE (Write Precomp Reg.)
#FD0A IDE Sector Count IDE Sector Count
#FD0B IDE Sector Number IDE Sector Number
#FD0C IDE Cylinder Low IDE Cylinder Low
#FD0D IDE Cylinder High IDE Cylinder High
#FD0E IDE SDH Register IDE SDH Register
#FD0F IDE Status Register IDE Command Register
#FD10 PS/2 Mouse Status Write: Not used
#FD11 ROM Enable SYMBiFACE II roms ROM Disable all SYMBiFACE II Roms
#FD12-#FD13 ? ?
#FD14 RTC Data RTC Data
#FD15 Read: Not used RTC Index
#FD16 ? ?
#FD17 ROM Map upper ROM to 4000h-7FFFh (for writing to FLASH ROMs) ROM Don't map ROM to 4000h-7FFFh (default)
#FD17-#FD3F ? ?