LAN9353 Datasheet, PDF (267/523 Pages) Microchip Technology – Interfaces at up to 200Mbps via Turbo MII

LAN9353
10.7.2.15 Port x MAC Receive Pause Frame Count Register (MAC_RX_PAUSE_CNT_x)
Register #:
Port0: 041Ch
Port1: 081Ch
Port2: 0C1Ch
Size:
32 bits
This register provides a counter of valid received pause frame packets. The counter is cleared upon being read.
Bits
Description
31:0 RX Pause Frame
Count of valid packets (proper length and free of errors) that have a type field
of 8808h and an op-code of 0001(Pause).
Note: This counter will stop at its maximum value of FFFF_FFFFh.
Minimum rollover time at 100 Mbps is approximately 481 hours.
Type
RC
Default
00000000h
Note: A bad packet is one that has a FCS or Symbol error.
10.7.2.16 Port x MAC Receive Fragment Error Count Register (MAC_RX_FRAG_CNT_x)
Register #:
Port0: 041Dh
Port1: 081Dh
Port2: 0C1Dh
Size:
32 bits
This register provides a counter of received packets of less than 64 bytes and a FCS error. The counter is cleared upon
being read.
Bits
Description
31:0 RX Fragment
Count of packets that have less than 64 bytes and a FCS error.
Note: This counter will stop at its maximum value of FFFF_FFFFh.
Minimum rollover time at 100 Mbps is approximately 115 hours.
Type
RC
Default
00000000h
 2015 Microchip Technology Inc.
DS00001925A-page 267