CHAPTER 21:Ethernet MAC
734
S6J3200 Series Hardware Manual Document Number: 002-04852 Rev. *G
4.79.
Receive Symbol_Errors Register (ETHERNETn_rx_symbol_errors)
Description of Receive Symbol_Errors register is shown.
REGISTER_NAME
ETHERNETn_rx_symbol_errors
OFFSET
0x198
ACCESS_SIZE
W
MULTIPLE
NUMERIC_TYPE
OTHER
BIT_OFFSET
31
30
29
28
27
26
25
24
BIT_NAME
Reserved
ACCESS_TYPE
R0,WX
PROT_TYPE
Wp
INITIAL_VALUE
0x00
BIT_OFFSET
23
22
21
20
19
18
17
16
BIT_NAME
Reserved
ACCESS_TYPE
R0,WX
PROT_TYPE
Wp
INITIAL_VALUE
0x00
BIT_OFFSET
15
14
13
12
11
10
9
8
BIT_NAME
Reserved
count[9:8]
ACCESS_TYPE
R0,WX
R,WX
PROT_TYPE
Wp
INITIAL_VALUE
0x00
0x0
BIT_OFFSET
7
6
5
4
3
2
1
0
BIT_NAME
count[7:0]
ACCESS_TYPE
R,WX
PROT_TYPE
Wp
INITIAL_VALUE
0x00
[bit31:10] Reserved
Always read "0". Writing has no effect.
[bit9:0] count: Receive symbol errors
A 10-bit register counting the number of frames that had
RX_ER
asserted during reception. For 10/100
MBit/s mode symbol errors are counted regardless of frame length checks. Receive symbol errors will
also be counted as an FCS or alignment error if the frame is between 64 and 1518 bytes (1536 bytes if
bit 8 is set in the Network Configuration register, 10240 bytes if bit 3 is set in the Network Configuration
register). If the frame is larger it will be recorded as a jabber error.
Содержание S6J3200 Series
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