CX82100 Home Network Processor Data Sheet
Table 7-8. Definition of RMAC Receive Status
Bit(s)
63-60
59-52
Default
Name
Description
Remarks
MIB Counter
Reserved.
No. of CRC Errors.
0
CRC
The number of errors accumulated between good frames
received. Range = 0–255.
51-48
47-44
43-36
35-32
0
0
0
0
ALN
No. of Alignment Errors.
MIB Counter
MIB Counter
MIB Counter
MIB Counter
The number of alignment errors accumulated between good
frames. Range = 0–15.
No. of Long Packets.
LONG
RUNT
OFLW
The number of packets >1518 bytes accumulated between
good frames. Range = 0–15.
No. of Runt Packets.
The number of packets <64 bytes accumulated between good
frames. Range = 0–255.
No. of Overflow Packets.
The number of packets that caused FIFO overflow
accumulated between good frames. Range = 0–15.
31-16
15
0
0
FL
Frame Length.
Frame length in bytes including CRC. Range = 0–63.
Error Summary.
ES
0 = Error not detected.
1 = Error detected (logical OR of the following: FIFO
Overflow, CRC Error, Late Collision, Packet Too Long,
Packet Too Short).
14
13-12
0
0
Always 0.
OM
Operating Mode.
00 = Normal operation.
01 = Internal loopback.
10 = External loopback.
11 = Reserved.
11
10
0
0
TS
Packet Too Short.
0 = Packet length ≥ 64 bytes.
1 = Packet length < 64 bytes.
Multicast Frame.
0 = Not multicast frame.
1 = Multicast frame.
MF
9-8
7
0
0
Always 0.
Packet Too Long.
TL
LC
0 = Packet length ≤ 1518 bytes.
1 = Packet length > 1518 bytes.
Late Collision.
0 = Collision did not occur after DMAC transfer initiated.
1 = Collision occurred after DMAC transfer initiated.
Old Frame Type.
0 = Frame length ≤ 1500 bytes.
1 = Frame length > 1500 bytes (legacy from DIX support).
Receive Watchdog.
6
5
4
0
0
0
OFT
RW
0 = Watchdog timer expired during receipt of this packet.
1 = Watchdog timer expired during receipt of this packet.
7-24
Conexant Proprietary and Confidential Information
101306C
CONEXANT [ CONEXANT SYSTEMS, INC ]
