High Performance Two Port 10/100 Managed Ethernet Switch with
Datasheet
14.5.2.10Port x MAC Receive Oversize Count Register (MAC_RX_OVRSZE_CNT_x)Register #: | Port0: 0417h | Size: | 32 bits | |
| Port1: | 0817h |
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| Port2: | 0C17h |
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This register provides a counter of received packets with a size greater than the maximum byte size. The counter is cleared upon being read.
BITS | DESCRIPTION | TYPE | DEFAULT |
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31:0 | RX Oversize | RC | 00000000h |
| Count of packets that have more than the maximum allowable number of |
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| bytes and a valid FCS. The max number of bytes is 1518 for untagged |
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| packets and 1522 for tagged packets. If Jumbo2K (bit 3) is set in the Port x |
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| MAC Receive Configuration Register (MAC_RX_CFG_x), the max number |
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| of bytes is 2048. |
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| Note: This counter will stop at its maximum value of FFFF_FFFFh. |
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| Minimum rollover time at 100Mbps is approximately 8813 hours. |
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Note: For this counter, a packet with the maximum number of bytes that is not an integral number of bytes (e.g. a 1518 1/2 byte packet) is not considered oversize.
SMSC LAN9312 | 331 | Revision 1.4 |
| DATASHEET |
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