PBKEY

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Interpret as PBKEY

KEY=LOCKED

Description

Global Port Key

Fields

KEY

Port Bank 2, 3, and 4 Key.

0 (LOCKED): Port Bank 2, 3, and 4 registers are locked and no valid values have been written to PBKEY.

1 (INTERMEDIATE): Port Bank 2, 3, and 4 registers are locked and the first valid value (0xA5) has been written to PBKEY.

2 (UNLOCKED): Port Bank 2, 3, and 4 registers are unlocked. Any subsequent writes to the Port Bank 2, 3, or 4 registers or PBKEY will lock the interface.

Links

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