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| author | Matt Ettus <matt@ettus.com> | 2010-06-10 11:34:18 -0700 |
|---|---|---|
| committer | Matt Ettus <matt@ettus.com> | 2010-06-10 11:34:18 -0700 |
| commit | 45e5589ed9c555c604fb66be9f314c02ff5fb9e4 (patch) | |
| tree | 06ec12796d2f60d4e6a01ae97356817202e13262 /usrp2/control_lib/newfifo/fifo_spec.txt | |
| parent | 8dbe0a6f5c4cb4d3d888d94287e788153762d14b (diff) | |
| download | uhd-45e5589ed9c555c604fb66be9f314c02ff5fb9e4.tar.gz uhd-45e5589ed9c555c604fb66be9f314c02ff5fb9e4.tar.bz2 uhd-45e5589ed9c555c604fb66be9f314c02ff5fb9e4.zip | |
first attempt at cleaning up the build system
Diffstat (limited to 'usrp2/control_lib/newfifo/fifo_spec.txt')
| -rw-r--r-- | usrp2/control_lib/newfifo/fifo_spec.txt | 36 |
1 files changed, 0 insertions, 36 deletions
diff --git a/usrp2/control_lib/newfifo/fifo_spec.txt b/usrp2/control_lib/newfifo/fifo_spec.txt deleted file mode 100644 index 133b9fa8e..000000000 --- a/usrp2/control_lib/newfifo/fifo_spec.txt +++ /dev/null @@ -1,36 +0,0 @@ - - -FIFO and Buffer Interface Spec - -Buffer Interface Data Wires -- matches fifo36 - DATA[31:0] - FLAGS[3:0] - Bit 0 SOP - Bit 1 EOP - If SOP=1 && EOP=1, OCC contains error flags - Bits 3:2 OCC[1:0] --> 00 = all 4 bytes - 01 = 1 byte - 10 = 2 bytes - 11 = 3 bytes - -fifo36 --> {OCC[1:0],EOP,SOP,DATA[31:0]} - OCC same as buffer interface - -fifo19 --> {OCC,EOP,SOP,DATA[15:0]} - Doesn't fit well into BRAM, dist RAM ok - OCC = 1 means last word is half full - = 0 means last word is full - -fifo18 --> {EOP,SOP,DATA[15:0]} - No half-word capability? Should we drop sop instead? - -Control Wires - Data into FIFO - SRC_RDY_i Upstream has data for me - DST_RDY_o I have space - Transfer occurs if SRC_RDI_i && DST_RDY_o - -Control Wires - Data out of FIFO - SRC_RDY_o I have data for downstream - DST_RDY_i Downstream has space - Transfer occurs if SRC_RDI_o && DST_RDY_i - |