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Address Bus A: Difference between revisions
From SnesLab
(what it is connected to is more important usually) |
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* [[Cartridge Slot]] pins 5-17 and 37-48 | * [[Cartridge Slot]] pins 5-17 and 37-48 | ||
It is 24 bits wide because that is how big the SNES' address space is. | It is 24 bits wide because that is how big the SNES' address space is. It can address up to 16 megabytes. | ||
[[File:Bus A.png|thumb]] | [[File:Bus A.png|thumb]] | ||
Revision as of 08:07, 21 July 2024
Address Bus A is a 24-bit bus on the SNES. It is drawn in orange in the colorized jwdonal schematic, and its individual address lines are labeled CA0-CA23.
It is connected to:
- S-CPU pins 2-17 and 93-100
- WRAM pins 23-42
- Cartridge Slot pins 5-17 and 37-48
It is 24 bits wide because that is how big the SNES' address space is. It can address up to 16 megabytes.
See Also
Reference
- Figure 2-22-1, "Super NES Functional Block Diagram" on page 2-22-2 of Book I