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BWPA: Difference between revisions
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'''BWPA''' is 8 bits wide on the [[SA-1]], located at 2228h. It is initialized to FFh. | '''BWPA''' is 8 bits wide on the [[SA-1]], located at 2228h. It is initialized to FFh. | ||
The [[Bit-Breakdown Diagram]] in the manual appears to suggest that zeros should be written to the high nybble. | |||
All areas are write-protected on startup. | |||
=== Reference === | === Reference === | ||
Latest revision as of 22:40, 7 July 2024
BWPA is 8 bits wide on the SA-1, located at 2228h. It is initialized to FFh.
The Bit-Breakdown Diagram in the manual appears to suggest that zeros should be written to the high nybble.
All areas are write-protected on startup.
Reference
- 4.1.24 on page 1-4-17 of Book II of the official Super Nintendo development manual