參數(shù)資料
型號: P8XC591
廠商: NXP Semiconductors N.V.
英文描述: HiRel FPGA, Low-Power 1.0?? CMOS Technology
中文描述: 單芯片8 - CAN控制器位微控制器
文件頁數(shù): 53/160頁
文件大?。?/td> 601K
代理商: P8XC591
2000 Jul 26
53
Philips Semiconductors
Preliminary Specification
Single-chip 8-bit microcontroller with CAN controller
P8xC591
12.5.17.5 Dual Filter Configuration
In this filter configuration two short filters could be defined.
A received message is compared with both filters to
decide, whether this message should be copied into the
Receive Buffer or not. If at least one of the filters signals an
acceptance, the received message becomes valid. The bit
correspondences between the filter bytes and the
message bytes depends on the currently received Frame
Format.
Dual Filter Standard Frame:
If the Standard Frame Format is selected, the two defined
filters are different. The first filter compares the complete
Standard Identifier including the RTR bit
and
the first Data
Byte of the message. The second filter just compares the
complete Standard Identifier including the RTR bit.
Fig.17 Dual Filter Configuration, receiving Standard Frame Messages.
handbook, full pagewidth
Addr.: 16
7
6
ACR0
2
5
4
3
1
0
MSB
LSB
ACR1
2
3
1
0
LSB
ACR3
2
3
1
0
LSB
Addr.: 17
7
6
5
4
MSB
I
I
I
I
I
I
I
I
I
I
I
R
D
D
D
D
D
D
D
D
Addr.: 20
7
6
AMR0
2
5
4
3
1
0
MSB
LSB
AMR1
2
3
1
0
LSB
AMR3
2
3
1
0
LSB
Addr.: 21
7
6
5
4
MSB
[6]
[7]
1
1
[0]
[0]
1
=
Acceptance Code Bit
Acceptance Mask Bit
Filter 1
Filter 2
Filter 1
Filter 2
Message
Addr.: 22
7
6
MSB
AMR2
2
5
4
3
1
0
LSB
Addr.: 23
7
6
MSB
AMR3
5
4
Addr.: 18
7
6
MSB
ACR2
2
5
4
3
1
0
LSB
Addr.: 19
7
6
MSB
ACR3
5
4
. . .
. . .
. . .
.
[6]
[7]
0
1
not accepted
accepted
=
Message Bit
Acceptance Code Bit
Acceptance Mask Bit
. . .
. . .
.
&
&
MHI017
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