40.6.28 Receive Symbol Errors Register

EMAC_RSE is an EMAC statistics register. It resets to zero on a read and sticks at all ones when it counts to its maximum value. It should be read frequently enough to prevent loss of data.

This receive statistics register is only incremented when the ‘Receive Enable’ bit is set in the Network Control Register (EMAC_NCR). To write to this register, bit 7 must be set in EMAC_NCR.

Name:	EMAC_RSE
Offset:	0x74
Reset:	0x00000000
Property:	Read/Write


Bit	31	30	29	28	27	26	25	24

Access
Reset


Bit	23	22	21	20	19	18	17	16

Access
Reset


Bit	15	14	13	12	11	10	9	8

Access
Reset


Bit	7	6	5	4	3	2	1	0
	RSE[7:0]
Access	R/W	R/W	R/W	R/W	R/W	R/W	R/W	R/W
Reset	0	0	0	0	0	0	0	0

Bits 7:0 – RSE[7:0] Receive Symbol Errors

An 8-bit register counting the number of frames that had rx_er asserted during reception. Receive symbol errors are also counted as an FCS or alignment error if the frame is between 64 and 1518 bytes in length (1536 if bit 8 is set in the EMAC_NCFGR). If the frame is larger, it is recorded as a jabber error.