High Performance Two Port 10/100 Managed Ethernet Switch with
Datasheet
14.5.2.9Port x MAC Receive 1024 to Max Byte Count Register (MAC_RX_1024_TO_MAX_CNT_x)
Register #: | Port0: 0416h | Size: | 32 bits | |
| Port1: | 0816h |
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| Port2: | 0C16h |
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This register provides a counter of received packets between the size of 1024 to the maximum allowable number bytes. The counter is cleared upon being read.
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| DESCRIPTION | TYPE | DEFAULT |
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31:0 | RX 1024 to Max Bytes | RC | 00000000h | |
| Count of packets (including bad packets) that have between 1024 and the |
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| maximum allowable number of bytes. The max number of bytes is 1518 for |
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| untagged packets and 1522 for tagged packets. If Jumbo2K (bit 3) is set in |
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| the Port x MAC Receive Configuration Register (MAC_RX_CFG_x), the max |
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| number 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 5979 hours. |
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Note: A bad packet is defined as a packet that has an FCS or Symbol error. 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 counted.
Revision 1.4 | 330 | SMSC LAN9312 |
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