Information

Enhanced Three-Speed Ethernet Controllers
MPC8308 PowerQUICC II Pro Processor Reference Manual, Rev. 1
16-86 Freescale Semiconductor
16.5.3.6.18 Receive Code Error Counter (RCDE)
Figure 16-68 describes the definition for the RCDE register.
Table 16-72 describes the fields of the RCDE register.
16.5.3.6.19 Receive Carrier Sense Error Counter (RCSE)
Figure 16-69 describes the definition for the RCSE register.
Table 16-73 describes the fields of the RCSE register.
Offset eTSEC1:0x2_46C4; eTSEC2:0x2_56C4 Access: Read/Write
0151631
R
— RCDE
W
Reset All zeros
Figure 16-68. Receive Code Error Counter Register Definition
Table 16-72. RCDE Field Descriptions
Bits Name Description
0–15 — Reserved
16–31 RCDE Receive code error counter. Increments each time a valid carrier is present and at least one invalid data
symbol is detected.
Offset eTSEC1:0x2_46C8; eTSEC2:0x2_56C8 Access: Read/Write
0151631
R
— RCSE
W
Reset All zeros
Figure 16-69. Receive Carrier Sense Error Counter Register Definition
Table 16-73. RCSE Field Descriptions
Bits Name Description
0–15 — Reserved
16–31 RCSE
Receive false carrier counter. Counts the number of times that the carrier sense condition was lost or never
asserted when attempting to transmit a frame on a particular interface.
The count represented by an instance of this object is incremented at most once per transmission attempt,
even if the carrier sense condition fluctuates during a transmission attempt. The event is reported along with
the statistics generated on the next received frame, as defined by a 1 on TSECn_RX_ER and an 0xE on
TSECn_RXD. Only one false carrier condition can be detected and logged between frames.