Ethernet Subsystem Registers
14.5.7.5 RX_MAXLEN Register (offset = 10h) [reset = 5EEh]
RX_MAXLEN is shown in
and described in
CPGMAC_SL RX MAXIMUM LENGTH REGISTER
Figure 14-177. RX_MAXLEN Register
31
30
29
28
27
26
25
24
Reserved
R-0h
23
22
21
20
19
18
17
16
Reserved
R-0h
15
14
13
12
11
10
9
8
Reserved
RX_MAXLEN
R-0h
R/W-5EEh
7
6
5
4
3
2
1
0
RX_MAXLEN
R/W-5EEh
LEGEND: R/W = Read/Write; R = Read only; W1toCl = Write 1 to clear bit; -n = value after reset
Table 14-193. RX_MAXLEN Register Field Descriptions
Bit
Field
Type
Reset
Description
31-14
Reserved
R
0h
13-0
RX_MAXLEN
R/W
5EEh
RX Maximum Frame Length - This field determines the maximum
length of a received frame.
The reset value is 1518 (dec).
Frames with byte counts greater than rx_maxlen are long frames.
Long frames with no errors are oversized frames.
Long frames with CRC, code, or alignment error are jabber frames.
The maximum value is 16,383.
1418
Ethernet Subsystem
SPRUH73H – October 2011 – Revised April 2013
Copyright © 2011–2013, Texas Instruments Incorporated