SMSC LAN9311 User Manual

Page of 460
Two Port 10/100 Managed Ethernet Switch with 16-Bit Non-PCI CPU Interface
Datasheet
SMSC LAN9311/LAN9311i
345
Revision 1.4 (08-19-08)
DATASHEET
 
14.5.2.22
Port x MAC Receive Control Frame Count Register (MAC_RX_CTLFRM_CNT_x)
This register provides a counter of good packets with a type field of 8808h. The counter is cleared
upon being read.
Note:
A bad packet is one that has an FCS or Symbol error. 
Register #:
Port0: 0423h
Size:
32 bits
Port1: 0823h
Port2: 0C23h
BITS
DESCRIPTION
TYPE
DEFAULT
31:0
RX Control Frame
Count of good packets (proper length and free of errors) that have a type 
field of 8808h.
Note:
This counter will stop at its maximum value of FFFF_FFFFh. 
Minimum rollover time at 100Mbps is approximately 481 hours.
RC
00000000h