Atmel Evaluation Kit AT91SAM9X25-EK AT91SAM9X25-EK 数据表
产品代码
AT91SAM9X25-EK
945
SAM9X25 [DATASHEET]
11054E–ATARM–10-Mar-2014
41.9.17 CAN Message Family ID Register
Name:
CAN_MFIDx [x=0..7]
Address:
0xF800020C (0)[0], 0xF800022C (0)[1], 0xF800024C (0)[2], 0xF800026C (0)[3], 0xF800028C (0)[4],
0xF80002AC (0)[5], 0xF80002CC (0)[6], 0xF80002EC (0)[7], 0xF800420C (1)[0], 0xF800422C (1)[1], 0xF800424C (1)[2],
0xF800426C (1)[3], 0xF800428C (1)[4], 0xF80042AC (1)[5], 0xF80042CC (1)[6], 0xF80042EC (1)[7]
0xF800426C (1)[3], 0xF800428C (1)[4], 0xF80042AC (1)[5], 0xF80042CC (1)[6], 0xF80042EC (1)[7]
Access:
Read-only
• MFID: Family ID
This field contains the concatenation of CAN_MIDx register bits masked by the CAN_MAMx register. This field is useful to speed
up message ID decoding. The message acceptance procedure is described below.
up message ID decoding. The message acceptance procedure is described below.
As an example:
CAN_MIDx = 0x305A4321
CAN_MAMx = 0x3FF0F0FF
CAN_MFIDx = 0x000000A3
31
30
29
28
27
26
25
24
–
–
–
MFID
23
22
21
20
19
18
17
16
MFID
15
14
13
12
11
10
9
8
MFID
7
6
5
4
3
2
1
0
MFID