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DS33R11 Ethernet Mapper with Integrated T1/E1/J1 Transceiver
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Register Name:
SU.RFSB3
Register Description:
Receive Frame Status Byte 3
Register Address:
157h
Bit # 7 6 5 4 3 2 1 0
Name MF - - BF MCF UF CF LE
Default 0 0 0 0 0 0 0 0
Bit 7: Missed Frame (MF) This bit is set to 1 if the packet is not successfully received from the MAC by the packet
Arbiter.
Bit 4: Broadcast Frame (BF) This bit is set to 1 if the current frame is a broadcast frame.
Bit 3: Multicast Frame (MCF) This bit is set to 1 if the current frame is a multicast frame.
Bit 2: Unsupported Control Frame (UF) This bit is set to 1 if the frame received is a control frame with an opcode
that is not supported. If the Control Frame bit is set, and the Unsupported Control Frame bit is clear, then a pause
frame has been received and the transmitter is paused.
Bit 1: Control Frame (CF) This bit is set to 1 when the current frame is a control frame. This bit is only valid in full-
duplex mode.
Bit 0: Length Error (LE) This bit is set to 1 when the frames length field and the actual byte count are unequal.
This bit is only valid for 802.3 frames.