Datasheet

DescriptionResetTypeNameBit/Field
Forward Undersized Good Frames
DescriptionValue
The Receive FIFO drops all frames of less than 64 bytes, unless
a frame is already transferred because of the lower value of
Receive Threshold (RTC) bit field (for example, RTC = 0x1).
0
The Receive FIFO forwards undersized frames (frames with no
Error and length less than 64 bytes) including pad-bytes and
CRC.
1
0x0RWFUF6
Drop Giant Frame Enable
DescriptionValue
The MAC does not drop the giant frames in the RX FIFO.0
The MAC drops received frames larger than the computed giant
frame limit in the RX FIFO.
1
0x0RWDGF5
Receive Threshold Control
These two bits control the threshold level of the RX FIFO. Transfer
(request) to DMA starts when the frame size within the RX FIFO is larger
than the threshold. In addition, full frames with length less than the
threshold are transferred automatically.
These bits are valid only when the RSF bit (bit 25) of the
EMACDMAOPMODE is zero, and are ignored when the RSF bit is set
to 1.
DescriptionValue
64 bytes0x0
32 bytes0x1
96 bytes0x2
128 bytes0x3
0x0RWRTC4:3
Operate on Second Frame
DescriptionValue
DMA processes frames normally.0
DMA processes second frame of the Transmit data even before
the status for the first frame is obtained.
1
0x0RWOSF2
December 13, 20131764
Texas Instruments-Advance Information
Ethernet Controller