Ethernet MAC
UG0331 User Guide Revision 15.0 396
RALN 0xBC R/W 0x0 This is incremented for each received frame from 64 to 1518,
which contains an invalid FCS and is not an integral number of
bytes.
RFLR 0XC0 R/W 0x0 This is incremented for each frame received in which the 802.3
length field does not match the number of data bytes actually
received (46 – 1500 bytes).
RCDE 0XC4 R/W 0x0 This is incremented each time a valid carrier is present and at least
one invalid data symbol is detected.
RCSE 0XC8 R/W 0x0 This is incremented each time a false carrier is detected.
RUND 0xCC R/W 0x0 This is incremented each time a frame is received, which is less
than 64 bytes in length and contains a valid frame check sequence
(FCS).
ROVR 0xD0 R/W 0x0 This is incremented each time a frame is received which
exceeds1518 (non VLAN) or 1522 (VLAN) bytes and contains a
valid FCS.
RFRG 0xD4 R/W 0x0 This is incremented for each frame received which is less than 64
bytes in length and contains an invalid FCS.
RJBR 0xD8 R/W 0x0 This is incremented for frames received which exceed 1518 (non
VLAN) or 1522 (VLAN) bytes and contains an invalid FCS.
RDRP 0xDC R/W 0x0 This is incremented for frames received which are streamed to
system but are later dropped due to lack of system resources.
Table 337 • EMAC PE-MSTAT Transmit Counters Register Map
Register
Name
Address
Offset
Register
Type Reset Value Description
TBYT 0XE0 R/W 0x0 This is incremented for each transmitted byte including
fragments of frames which are involved in collisions.
TPKT 0XE4 R/W 0x0 This is incremented for each transmitted packet.
TMCA 0XE8 R/W 0x0 This is incremented for each transmitted multicast valid frame.
TBCA 0xEC R/W 0x0 This is incremented for each transmitted broadcast frame.
TXPF 0XF0 R/W 0x0 This is incremented each time a valid PAUSE MAC control
frame is transmitted.
TDFR 0XF4 R/W 0x0 This incremented for each frame, which is deferred on its first
transmission attempt.
TEDF 0XF8 R/W 0x0 This is incremented for aborted frames, which are deferred for
an excessive period of time (3036 byte times).
TSCL 0xFC R/W 0x0 This is incremented for each transmitted frame that experiences
exactly one collision during the transmission.
TMCL 0x100 R/W 0x0 This is incremented for each transmitted frame that experiences
2 to 15 collisions (including any late collisions) during the
transmission.
TLCL 0x104 R/W 0x0 This is incremented for each transmitted frame which
experiences a late collision during a transmission attempt.
Table 336 • EMAC PE-MSTAT Receive Counters Register Map (continued)
Register
Name
Address
Offset
Register
Type
Reset
Value Description