Sharp LH79524 - Carrier Sense Errors (SENSERR); Table 6-56. SENSERR Register; Table 6-57. SENSERR Fields

LH79524/LH79525 User’s Guide Ethernet MAC Controller
Version 1.0 6-43
6.3.3.12 Carrier Sense Errors (SENSERR)
This register counts the number of Carrier Sense errors.
Table 6-56. SENSERR Register
BIT 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16
FIELD ///
RESET 0 000000000000000
TYPE RO RO RO RO RO RO RO RO RO RO RO RO RO RO RO RO
BIT 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
FIELD /// SENSERR
RESET 0 000000000000000
TYPE RO RO RO RO RO RO RO RO RW RW RW RW RW RW RW RW
ADDR 0xFFFC7000 + 0x68
Table 6-57. SENSERR Fields
BITS NAME FUNCTION
31:8 /// Reserved Reading returns 0. Write the reset value.
7:0 SENSERR
Carrier Sense Errors Number of frames transmitted where carrier sense
was not detected during transmission, or where carrier sense was deassert-
ed after being asserted in a transmit frame without a collision (no underrun).
This count is only incremented in half duplex mode. The only effect of a car-
rier sense error is to increment this register. The behavior of the other statis-
tics registers is unaffected by the detection of a carrier sense error.