SMSC LAN9311 User Manual

Page of 460
Two Port 10/100 Managed Ethernet Switch with 16-Bit Non-PCI CPU Interface
Datasheet
Revision 1.4 (08-19-08)
336
SMSC LAN9311/LAN9311i
DATASHEET
 
14.5.2.13
Port x MAC Receive Multicast Count Register (MAC_RX_MULCST_CNT_x)
This register provides a counter of valid received packets with a multicast destination address. The
counter is cleared upon being read.
Note:
A bad packet is one that has a FCS or Symbol error.
Register #:
Port0: 041Ah
Size:
32 bits
Port1: 081Ah
Port2: 0C1Ah
BITS
DESCRIPTION
TYPE
DEFAULT
31:0
RX Multicast
Count of good packets (proper length and free of errors), including MAC 
control frames, that have a multicast destination address (not including 
broadcasts).
Note:
This counter will stop at its maximum value of FFFF_FFFFh. 
Minimum rollover time at 100Mbps is approximately 481 hours.
RC
00000000h