SYMBiFACE II:I/O Map Summary: Difference between revisions
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|'''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 07:15, 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 | ? | ? |