Rainbow Electronics AT91CAP9S250A User Manual
Page 834
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834
6264A–CAP–21-May-07
AT91CAP9S500A/AT91CAP9S250A
42.5.26.9
Late Collisions Register
Register Name:
EMAC_LCOL
Access Type:
Read/Write
• LCOL: Late Collisions
An 8-bit register counting the number of frames that experience a collision after the slot time (512 bits) has expired. A late
collision is counted twice; i.e., both as a collision and a late collision.
42.5.26.10
Excessive Collisions Register
Register Name:
EMAC_EXCOL
Access Type:
Read/Write
• EXCOL: Excessive Collisions
An 8-bit register counting the number of frames that failed to be transmitted because they experienced 16 collisions.
31
30
29
28
27
26
25
24
–
–
–
–
–
–
–
–
23
22
21
20
19
18
17
16
–
–
–
–
–
–
–
–
15
14
13
12
11
10
9
8
–
–
–
–
–
–
–
–
7
6
5
4
3
2
1
0
LCOL
31
30
29
28
27
26
25
24
–
–
–
–
–
–
–
–
23
22
21
20
19
18
17
16
–
–
–
–
–
–
–
–
15
14
13
12
11
10
9
8
–
–
–
–
–
–
–
–
7
6
5
4
3
2
1
0
EXCOL
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