You can create your keyboard layout in this address.
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| [X][X][X][X][X][X] | [X][X][X][X][X][X] |
| [X][X][X][X][X][X] | [X][X][X][X][X][X] |
| [X][X][X][X][X][X] | [X][X][X][X][X][X] |
| [X][X][X][X][X][X] | [X][X][X][X][X][X] |
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You can create your keyboard firmware in this address.