PKT_STAT
The Cyton-CXP
CYT-3-20
BitFlow, Inc.
Version A.0
PKT_STATE
RO, PKT_STAT[1..0], Cyton-CXP
Current state of the DMA engine.
NO_QUAD_
AVAIL
RO, PKT_STAT[8], Cyton-CXP
StreamSync DMA has data to transmit but no descriptor (effectively no valid place to
send data). This indicates a problem with fetching descriptors.
VIDEO_
DROPPED
RO, PKT_STAT[9], Cyton-CXP
Can occur during PKT_SYNC as video from acquisition engine is dropped in order to
resynchronize.
QUAD_
DROPPED
RO, PKT_STAT[10], Cyton-CXP
Similar to VIDEO_DROPPED but indicates quad was dropped during re-sync process
when PKT_STATE equals PKT_SYNC.
NEW_FRAME_
RESYNC
RO, PKT_STAT[12], Cyton-CXP
Reserved.
RD_ON_EMPTY
RO, PKT_STAT[13], Cyton-CXP
FIFO underflow in PacketEngine.
WR_ON_FULL
R/W, PKT_STAT[14], Cyton-CXP
FIFO overflow in PacketEngine.
PKT_STATE
Meaning
0 (00b)
PKT_SYNC - Synchronizing DMA descriptors with video
1 (01b)
PKT_HDR - Generating PCIe header
2 (10b)~
PKT_DAT - Placing data in PCIe packet
3 (11b)
Reserved
Summary of Contents for Cyton-CXP
Page 150: ...CON64 The Cyton CXP CYT 7 20 BitFlow Inc Version A 0 ...
Page 346: ...CON428 The Cyton CXP CYT 8 196 BitFlow Inc Version A 0 ...
Page 360: ...Camera Link Controls CCs The Cyton CXP CYT 9 14 BitFlow Inc Version A 0 ...
Page 372: ...I O Connector Pinout for the Cyton CXP The Cyton CXP CYT 10 12 BitFlow Inc Version A 0 ...
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