Module fdebug

FIFO debug register

Structs

FDEBUG_SPEC

FIFO debug register

Type Aliases

R

Register FDEBUG reader

RXSTALL_R

Field RXSTALL reader - State machine has stalled on full RX FIFO during a blocking PUSH, or an IN with autopush enabled. This flag is also set when a nonblocking PUSH to a full FIFO took place, in which case the state machine has dropped data. Write 1 to clear.

RXSTALL_W

Field RXSTALL writer - State machine has stalled on full RX FIFO during a blocking PUSH, or an IN with autopush enabled. This flag is also set when a nonblocking PUSH to a full FIFO took place, in which case the state machine has dropped data. Write 1 to clear.

RXUNDER_R

Field RXUNDER reader - RX FIFO underflow (i.e. read-on-empty by the system) has occurred. Write 1 to clear. Note that read-on-empty does not perturb the state of the FIFO in any way, but the data returned by reading from an empty FIFO is undefined, so this flag generally only becomes set due to some kind of software error.

RXUNDER_W

Field RXUNDER writer - RX FIFO underflow (i.e. read-on-empty by the system) has occurred. Write 1 to clear. Note that read-on-empty does not perturb the state of the FIFO in any way, but the data returned by reading from an empty FIFO is undefined, so this flag generally only becomes set due to some kind of software error.

TXOVER_R

Field TXOVER reader - TX FIFO overflow (i.e. write-on-full by the system) has occurred. Write 1 to clear. Note that write-on-full does not alter the state or contents of the FIFO in any way, but the data that the system attempted to write is dropped, so if this flag is set, your software has quite likely dropped some data on the floor.

TXOVER_W

Field TXOVER writer - TX FIFO overflow (i.e. write-on-full by the system) has occurred. Write 1 to clear. Note that write-on-full does not alter the state or contents of the FIFO in any way, but the data that the system attempted to write is dropped, so if this flag is set, your software has quite likely dropped some data on the floor.

TXSTALL_R

Field TXSTALL reader - State machine has stalled on empty TX FIFO during a blocking PULL, or an OUT with autopull enabled. Write 1 to clear.

TXSTALL_W

Field TXSTALL writer - State machine has stalled on empty TX FIFO during a blocking PULL, or an OUT with autopull enabled. Write 1 to clear.

W

Register FDEBUG writer