Difference between revisions of "Category:84PCE:RAM:By Address"
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The eZ80 has a 24-bit linear address space. Layout: | The eZ80 has a 24-bit linear address space. Layout: | ||
* 000000h: Start of flash. The first 128 K are locked boot sectors. The first 8 are divided into 8 K sectors, all of which are locked. Implies that there is no longer a certificate. | * 000000h: Start of flash. The first 128 K are locked boot sectors. The first 8 are divided into 8 K sectors, all of which are locked. Implies that there is no longer a certificate. | ||
| + | * 000066h: BrandonW handler. Write-to-flash without permission triggers the non-maskable BrandonW interrupt to fire. | ||
| + | * 00007Fh: Hardware/Emu flag: This byte indicates whether the ROM is a hardware ROM or emulator. | ||
| + | * 000080h: Start of boot code jump table. | ||
* D00000h: Start of RAM. 256 K. | * D00000h: Start of RAM. 256 K. | ||
* D40000h: Start of VRAM. 320x240x2 bytes = 153600 bytes. | * D40000h: Start of VRAM. 320x240x2 bytes = 153600 bytes. | ||
Revision as of 21:06, 21 March 2015
See also list of RAM areas by name.
The eZ80 has a 24-bit linear address space. Layout:
- 000000h: Start of flash. The first 128 K are locked boot sectors. The first 8 are divided into 8 K sectors, all of which are locked. Implies that there is no longer a certificate.
- 000066h: BrandonW handler. Write-to-flash without permission triggers the non-maskable BrandonW interrupt to fire.
- 00007Fh: Hardware/Emu flag: This byte indicates whether the ROM is a hardware ROM or emulator.
- 000080h: Start of boot code jump table.
- D00000h: Start of RAM. 256 K.
- D40000h: Start of VRAM. 320x240x2 bytes = 153600 bytes.
Pages in category "84PCE:RAM:By Address"
The following 38 pages are in this category, out of 38 total.
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D cont. |
D cont. |
