Rainbow Electronics AT91CAP9S250A User Manual
Page 831
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831
6264A–CAP–21-May-07
AT91CAP9S500A/AT91CAP9S250A
42.5.26.3
Single Collision Frames Register
Register Name:
EMAC_SCF
Access Type:
Read/Write
• SCF: Single Collision Frames
A 16-bit register counting the number of frames experiencing a single collision before being successfully transmitted, i.e.,
no underrun.
42.5.26.4
Multicollision Frames Register
Register Name:
EMAC_MCF
Access Type:
Read/Write
• MCF: Multicollision Frames
A 16-bit register counting the number of frames experiencing between two and fifteen collisions prior to being successfully
transmitted, i.e., no underrun and not too many retries.
31
30
29
28
27
26
25
24
–
–
–
–
–
–
–
–
23
22
21
20
19
18
17
16
–
–
–
–
–
–
–
–
15
14
13
12
11
10
9
8
SCF
7
6
5
4
3
2
1
0
SCF
31
30
29
28
27
26
25
24
–
–
–
–
–
–
–
–
23
22
21
20
19
18
17
16
–
–
–
–
–
–
–
–
15
14
13
12
11
10
9
8
MCF
7
6
5
4
3
2
1
0
MCF
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