SMSC LAN9311i - Manual (Page 358)

Two Port 10/100 Managed Ethernet Switch with 16-Bit Non-PCI CPU Interface
Datasheet
Revision 1.4 (08-19-08) 358 SMSC LAN9311/LAN9311i
DATASHEET
14.5.2.35 Port x MAC Transmit Packet Length Count Register (MAC_TX_PKTLEN_CNT_x)
This register provides a counter of total bytes transmitted. The counter is cleared upon being read.
Register #: Port0: 045Ch Size: 32 bits
Port1: 085Ch
Port2: 0C5Ch
BITS DESCRIPTION TYPE DEFAULT
31:0 TX Bytes
Count of total bytes transmitted (does not include bytes from collisions, but
does include bytes from Pause packets).
Note: This counter will stop at its maximum value of FFFF_FFFFh.
Minimum rollover time at 100Mbps is approximately 5.8 hours.
RC 00000000h