ahci_fis_receive.v File Reference

Receives incoming FIS-es, forwards DMA ones to DMA engine Stores received FIS-es if requested. More...

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Classes
Module	ahci_fis_receive

Detailed Description

Receives incoming FIS-es, forwards DMA ones to DMA engine Stores received FIS-es if requested.

Module:ahci_fis_receive

Date

2016-01-06

Author

Andrey Filippov

'fis_first_vld' is asserted when the FIFO output contains first DWORD of the received FIS (low byte - FIS type). FIS type is decoded outside of this module, and the caller pulses one of the get_* inputs to initiate incoming FIS processing (or ignoring it). 'get_fis_busy' is high until the fis is being received/stored, one of the 3 states (fis_ok, fis_err and fis_ferr) are raised This module also receives/updates device signature and PxTFD ERR and STS.

Copyright

Copyright (c) 2016 Elphel, Inc .

License:

ahci_fis_receive.v is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.

ahci_fis_receive.v is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.

You should have received a copy of the GNU General Public License along with this program. If not, see http://www.gnu.org/licenses/ .

Definition in file ahci_fis_receive.v.