Texas Instruments TMS320C645x DSP 사용자 설명서
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2.5.5.14
Fragment Flag
2.5.5.15
Undersized Flag
2.5.5.16
Control Flag
2.5.5.17
Overrun Flag
2.5.5.18
Code Error (CODEERROR) Flag
2.5.5.19
Alignment Error (ALIGNERROR) Flag
2.5.5.20
CRC Error (CRCERROR) Flag
2.5.5.21
No Match (NOMATCH) Flag
EMAC Functional Architecture
The EMAC sets this flag in the SOP buffer descriptor if the received packet is only a packet fragment and
was not discarded because the RXCEFEN bit was set in the RXMBPENABLE register.
was not discarded because the RXCEFEN bit was set in the RXMBPENABLE register.
The EMAC sets this flag in the SOP buffer descriptor if the received packet is undersized and was not
discarded because the RXCSFEN bit was set in the RXMBPENABLE register.
discarded because the RXCSFEN bit was set in the RXMBPENABLE register.
The EMAC sets this flag in the SOP buffer descriptor if the received packet is an EMAC control frame and
was not discarded because the RXCMFEN bit was set in the RXMBPENABLE register.
was not discarded because the RXCMFEN bit was set in the RXMBPENABLE register.
The EMAC sets this flag in the SOP buffer descriptor if the received packet was aborted due to a receive
overrun.
overrun.
The EMAC sets this flag in the SOP buffer descriptor if the received packet contained a code error and
was not discarded because the RXCEFEN bit was set in the RXMBPENABLE register.
was not discarded because the RXCEFEN bit was set in the RXMBPENABLE register.
The EMAC sets this flag in the SOP buffer descriptor if the received packet contained an alignment error
and was not discarded because the RXCEFEN bit was set in the RXMBPENABLE register.
and was not discarded because the RXCEFEN bit was set in the RXMBPENABLE register.
The EMAC sets this flag in the SOP buffer descriptor if the received packet contained a CRC error and
was not discarded because the RXCEFEN bit was set in the RXMBPENABLE register.
was not discarded because the RXCEFEN bit was set in the RXMBPENABLE register.
The EMAC sets this flag in the SOP buffer descriptor if the received packet did not pass any of the
EMAC’s address match criteria and was not discarded because the RXCAFEN bit was set in the
RXMBPENABLE register. Although the packet is a valid Ethernet data packet, it is only received because
the EMAC is in promiscuous mode.
EMAC’s address match criteria and was not discarded because the RXCAFEN bit was set in the
RXMBPENABLE register. Although the packet is a valid Ethernet data packet, it is only received because
the EMAC is in promiscuous mode.
Ethernet Media Access Controller (EMAC)/Management Data Input/Output (MDIO)
36
SPRU975B – August 2006