LAN9353 Datasheet, PDF (270/523 Pages) Microchip Technology – Interfaces at up to 200Mbps via Turbo MII

LAN9353
10.7.2.21 Port x MAC Receive Symbol Error Count Register (MAC_RX_SYMBOL_CNT_x)
Register #:
Port0: 0422h
Port1: 0822h
Port2: 0C22h
Size:
32 bits
This register provides a counter of received packets with a symbol error. The counter is cleared upon being read.
Bits
Description
31:0 RX Symbol
Count of packets that had a receive symbol 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
10.7.2.22 Port x MAC Receive Control Frame Count Register (MAC_RX_CTLFRM_CNT_x)
Register #:
Port0: 0423h
Port1: 0823h
Port2: 0C23h
Size:
32 bits
This register provides a counter of good packets with a type field of 8808h. The counter is cleared upon being read.
Bits
Description
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 100 Mbps is approximately 481 hours.
Type
RC
Note: A bad packet is one that has an FCS or Symbol error.
Default
00000000h
DS00001925A-page 270
 2015 Microchip Technology Inc.