Sharp LH79524 - Frame Check Sequence Errors (FRCHK); Table 6-44. FRCHK Register; Table 6-45. FRCHK Fields; Table 6-46. ALIGNERR Register

Ethernet MAC Controller LH79524/LH79525 User’s Guide
6-40 Version 1.0
6.3.3.6 Frame Check Sequence Errors (FRCHK)
This register hold the count of frames an integral number of bytes-long, have a bad CRC,
and are between 64 and 1,518 bytes in length (1,522 if NETCONFIG:RECBYTE is 1).
6.3.3.7 Alignment Errors (ALIGNERR)
This register holds the count of frames that are not an integral number of bytes-long and
have bad CRC when their length is truncated to the correct number of bytes. The bytes’
length is between 64 and 1,518 bytes in length (1,522 if NETCONFIG:RECBYTE is 1)
.
Table 6-44. FRCHK Register
BIT 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16
FIELD ///
RESET 0000000000000000
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 /// FRCHK
RESET 0000000000000000
TYPE RO RO RO RO RO RO RO RO RW RW RW RW RW RW RW RW
ADDR 0xFFFC7000 + 0x50
Table 6-45. FRCHK Fields
BITS NAME FUNCTION
31:8 /// Reserved Reading returns 0. Write the reset value.
7:0 FRCHK Frame Check Sequence Errors Number of Frame Check Sequence errors.
Table 6-46. ALIGNERR Register
BIT 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16
FIELD ///
RESET 0000000000000000
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 /// ALIGNERR
RESET 0000000000000000
TYPE RO RO RO RO RO RO RO RO RW RW RW RW RW RW RW RW
ADDR 0xFFFC7000 + 0x54
Table 6-47. ALIGNERR Fields
BITS NAME FUNCTION
31:8 /// Reserved Reading returns 0. Write the reset value.
7:0 ALIGNERR Alignment Errors Number of alignment errors.