SPRUIM2 User guide

SPRUIM2H May 2020 – October 2023 AM2431 , AM2432 , AM2434 , AM6411 , AM6412 , AM6421 , AM6422 , AM6441 , AM6442

12.2.1.4.6.18.13

Table 12-666 Rx Statistics Summary

Rx Statistic	Frame/Oct	Rx/Rx+Tx	Frame Type					Frame Size (bytes)								Event
			MAC control		Data⁽⁵⁾			<64	64	65-127	128-255	256-511	512-1023	1024-rx_maxlen	>rx_maxlen	Flow Coll.⁽⁸⁾	CRC Error	Align/Code	Overrun	Addr. Disc.
			Pause frame	Non-pause⁽⁴⁾	Multi cast	Broad cast	Uni cast	<64	64	65-127	128-255	256-511	512-1023	1024-rx_maxlen	>rx_maxlen	Flow Coll.⁽⁸⁾	CRC Error	Align/Code	Overrun	Addr. Disc.
Good Rx Frames	F	Rx	(y\|⁽¹⁾	y\|	y\|	y\|	y)	n	(y\|	y\|	y\|	y\|	y\|	y)	n	-⁽²⁾	n	n	-	n
Broadcast Rx Frames	F	Rx	(%\|⁽⁶⁾	%\|	n	y)	n	n	(y\|	y\|	y\|	y\|	y\|	y)	n	-	n	n	-	n
Multicast Rx Frames	F	Rx	(%\|	%\|	y)	n	n	n	(y\|	y\|	y\|	y\|	y\|	y)	n	-	n	n	-	n
Pause Rx Frames	F	Rx	y	n	n	n	n	n	(y\|	y\|	y\|	y\|	y\|	y)	n	-	n	n	-	-
Rx CRC Errors	F	Rx	(y\|	y\|	y\|	y\|	y)	n	(y\|	y\|	y\|	y\|	y\|	y)	n	-	y	n	-	n
Rx Align/Code Errors	F	Rx	(y\|	y\|	y\|	y\|	y)	n	(y\|	y\|	y\|	y\|	y\|	y)	n	-	-	y	-	n
Oversized Rx Frames	F	Rx	(y\|	y\|	y\|	y\|	y)	n	n	n	n	n	n	n	y	-	n	n	-	n
Rx Jabbers	F	Rx	(y\|	y\|	y\|	y\|	y)	n	n	n	n	n	n	n	y	-	(y\|	y)	-	n
Undersized Rx Frames	F	Rx	n	n	(y\|	y\|	y)	y	n	n	n	n	n	n	n	-	n	n	-	n
Rx Fragments	F	Rx	n	n	(y\|	y\|	y)	y^⁽⁷⁾	n	n	n	n	n	n	n	-	(y\|	y)	-	-
Rx Overruns⁽⁹⁾	F	Rx	(y\|	y\|	y\|	y\|	y)	(y\|	y\|	y\|	y\|	y\|	y\|	y\|	y)	-	-	-	y	n
64octet Frames	F	Rx+Tx⁽³⁾	(y\|	y\|	y\|	y\|	y)	n	y	n	n	n	n	n	n	-	-	-	-	n
65-127octet Frames	F	Rx+Tx	(y\|	y\|	y\|	y\|	y)	n	n	y	n	n	n	n	n	-	-	-	-	n
128-255octet Frames	F	Rx+Tx	(y\|	y\|	y\|	y\|	y)	n	n	n	y	n	n	n	n	-	-	-	-	n
256-511octet Frames	F	Rx+Tx	(y\|	y\|	y\|	y\|	y)	n	n	n	n	y	n	n	n	-	-	-	-	n
512-1023octet Frames	F	Rx+Tx	(y\|	y\|	y\|	y\|	y)	n	n	n	n	n	y	n	n	-	-	-	-	n
1024-UPoctet Frames	F	Rx+Tx	(y\|	y\|	y\|	y\|	y)	n	n	n	n	n	n	y	n	-	-	-	-	n
Rx Octets	O	Rx	(y\|	y\|	y\|	y\|	y)	n	(y\|	y\|	y\|	y\|	y\|	y)	n	-	n	n	-	n
Net Octets	O	Rx+Tx	(y\|	y\|	y\|	y\|	y)	(y\|	y\|	y\|	y\|	y\|	y\|	y\|	y\|	y)	-	-	-	-

(1) “AND” is assumed horizontally across the table between all conditions which form the statistic (marked y or n) except where (y|y), meaning “OR” is indicated. Parentheses are significant.

(2) “-“ indicates conditions which are ignored in the formations of the statistic.

(3) Statistics marked “Rx+Tx” are formed by summing the Rx and Tx statistics, each of which is formed independently.

(4) The non-pause column refers to all MAC control frames (for example, frames with length/type=88.08) with opcodes other than 0x0001. The pauseframe column refers to MAC frames with the opcode=0x0001.

(5) The multicast, broadcast and unicast columns in the table refer to non-MAC Control/non-pause frames (i.e. data frames).

(6) “%” If either a MAC control frame or pause frame has a multicast or broadcast destination address then the appropriate statistics will be updated.

(7) “y^” Frame fragments are not counted if less than 8 bytes.

(8) Flow coll. are half-duplex collisions forced by the MAC to achieve flow-control. A collision will be forced during the first 8 bytes so should not show in frame fragments. Some of the ‘-‘s in this column might in reality be ‘n’s.

(9) The rx_overruns stat is for RX_MOF_OVERRUNS and RX_SOF_OVERRUNS added together.

Table 12-667 Tx Statistics Summary

Tx Statistic⁽⁹⁾	Frame/Oct	Tx/Rx+Tx	Frame Type					Frame Size (bytes)							Event
			MAC control⁽⁴⁾		Data			64	65-127	128-255	256-511	512-1023	1024-1535	>1535	CRC Error	Collision Type					No Carrier	Queued	Deferred	Underrun
			Pause-MAC	Any-CPU	Multi cast	Broad cast	Uni cast	64	65-127	128-255	256-511	512-1023	1024-1535	>1535	CRC Error	Flow⁽⁸⁾	1	2-15	16	Late	No Carrier	Queued	Deferred	Underrun
Good Tx Frames	F	Tx	(y\|⁽¹⁾	y\|	y\|	y\|	y)	(y\|	y\|	y\|	y\|	y\|	y\|	y)	-⁽²⁾	-	-	-	n	n	n	-	-	n
Broadcast Tx Frames	F	Tx	n	(%\|⁽⁵⁾	n	y)	n	(y\|	y\|	y\|	y\|	y\|	y\|	y)	-	-	-	-	n	n	n	-	-	n
Multicast Tx Frames	F	Tx	(y\|	%\|	y)	n	n	(y\|	y\|	y\|	y\|	y\|	y\|	y)	-	-	-	-	n	n	n	-	-	n
Pause Tx Frames	F	Tx	y	n	n	n	n	y	n	n	n	n	n	n	-	-	-	-	-	-	-	-	-	-
Collisions	F	Tx	n	(y\|	y\|	y\|	y)	(y\|	y\|	y\|	y\|	y\|	y\|	y)	-	(+⁽⁶⁾	+	+	+	+)	n	-	-	-
Single Collision Tx Frames	F	Tx	n	(y\|	y\|	y\|	y)	(y\|	y\|	y\|	y\|	y\|	y\|	y)	-	-	y	n	n	n	n	-	-	-
Multiple Collision Tx Frames	F	Tx	n	(y\|	y\|	y\|	y)	(y\|	y\|	y\|	y\|	y\|	y\|	y)	-	-	n	y	n	n	n	-	-	-
Excessive Collisions	F	Tx	n	(y\|	y\|	y\|	y)	(y\|	y\|	y\|	y\|	y\|	y\|	y)	-	-	n	n	y	n	n	-	-	-
Late Collisions	F	Tx	n	(y\|	y\|	y\|	y)	n	(y\|	y\|	y\|	y\|	y\|	y)	-	-	-	-	-	y	-	-	-	-
Deferred Tx Frames	F	Tx	n	(y\|	y\|	y\|	y)	(y\|	y\|	y\|	y\|	y\|	y\|	y)	-	-	n	n	n	n	n	-	y	n
Carrier Sense Errors	F	Tx	(y\|	y\|	y\|	y\|	y)	(y\|	y\|	y\|	y\|	y\|	y\|	y)	-	-	-	-	-	-	y	-	-	-
64octet Frames	F	Rx+Tx⁽³⁾	(y\|	y\|	y\|	y\|	y)	y	n	n	n	n	n	n	-	-	-	-	n	n	n	-	-	-
65-127octet Frames	F	Rx+Tx	(y\|	y\|	y\|	y\|	y)	n	y	n	n	n	n	n	-	-	-	-	n	n	n	-	-	-
128-255octet Frames	F	Rx+Tx	(y\|	y\|	y\|	y\|	y)	n	n	y	n	n	n	n	-	-	-	-	n	n	n	-	-	-
256-511octet Frames	F	Rx+Tx	(y\|	y\|	y\|	y\|	y)	n	n	n	y	n	n	n	-	-	-	-	n	n	n	-	-	-
512-1023octet Frames	F	Rx+Tx	(y\|	y\|	y\|	y\|	y)	n	n	n	n	y	n	n	-	-	-	-	n	n	n	-	-	-
1024-UPoctet Frames	F	Rx+Tx	(y\|	y\|	y\|	y\|	y)	n	n	n	n	n	y	y	-	-	-	-	n	n	n	-	-	-
Tx Octets	O	Tx	(y\|	y\|	y\|	y\|	y)	(y\|	y\|	y\|	y\|	y\|	y\|	y)	-	-	-	-	n	n	n	-	-	n
Net Octets	O	Rx+Tx	(y\|	y\|	y\|	y\|	y)	(y\|	y\|	y\|	y\|	y\|	y\|	y)	-	-	$⁽⁷⁾	$	$	$	$	-	-	-

(1) "AND" is assumed horizontally across the table between all conditions which form the statistic (marked y or n) except where (y|y), meaning “OR” is indicated. Parentheses are significant.

(2) “-“ indicates conditions which are ignored in the formations of the statistic.

(3) Statistics marked “Rx+Tx” are formed by summing the Rx and Tx statistics, each of which is formed independently.

(4) Pause (MAC) frames are issued in the MAC as perfect (no CRC error) 64 byte frames in full duplex only, so they cannot collide.

(5) “%” If a CPU sourced MAC control frame has a multicast or broadcast destination address then the appropriate statistics will be updated.

(6) “+” indicates collisions which are “summed” (i.e. every collision is counted in the Collisions statistic). Jam sequences used for halfduplex flow control are also counted.

(7) “$” Every byte written on the wire during each retry attempt is also counted in addition to frames which experience no collisions or carrier loss.

(8) The flow collision type is for half-duplex collisions forced by the MAC to achieve flow control. Some of the ‘-‘s in this column might in reality be ‘n’s. To prevent double-counting, Net Octets are unaffected by the jam sequence – the ‘received’ bytes, however, are counted. (See Table 12-666.)

(9) When the transmit Tx FIFO is drained due to the MAC being disabled or link being lost, then the frames being purged will not appear in the Tx statistics.