Wiimote/Extension Controllers/TaTaCon

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This Drum is identified by the 6 bytes: 0000 A420 0111 at register address 0x(4)a400fa.

Data Format

The Drum reports its information as a single byte of data, readable at 0x(4)a40005. The data is packed into the byte as follows (after decryption):

  Bit
Byte 7 6 5 4 3 2 1 0
0 1 CL RL CR RR 1 1 1

CL/R is the center of the drum (left/right side). RL/R is the rim of the drum (left/right side). These bits are inverted i.e. a hit clears the bit.

Note: The actual game performs a 6 byte read starting from address 0x00, but the first 5 bytes were not seen changing.

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