參數(shù)資料
型號(hào): 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): 51/160頁
文件大?。?/td> 601K
代理商: P8XC591
2000 Jul 26
51
Philips Semiconductors
Preliminary Specification
Single-chip 8-bit microcontroller with CAN controller
P8xC591
12.5.17.4 Single Filter Configuration
In this filter configuration one long filter (4-byte) could be
defined. The bit correspondences between the filter bytes
and the Message bytes depends on the programmed
Frame Format (see ACF Mode Register).
Single Filter Standard Frame:
If the Standard Frame Format is selected, the complete
Identifier including the RTR bit and the first two data bytes
are used for acceptance filtering. Messages may also be
accepted if there are no data bytes existing due to a set
RTR bit or if there is no or only one data byte because of
the corresponding data length code.
For a successful reception of a message, all single bit
comparisons have to signal acceptance. Note that the 4
least significant bits of AMR1 and ACR1 are not used. In
order to keep compatible with future products these bits
should be programmed to be “don‘t care” by setting
AMR1.3, AMR1.2, AMR1.1 and AMR1.0 to “1”.
Fig.15 Single Filter Configuration, receiving Standard Frame Messages.
handbook, full pagewidth
Addr.: 16
7
6
ACR0
2
5
4
3
1
0
LSB
Addr.: 18
7
6
ACR2
2
5
4
3
1
0
MSB
LSB
Addr.: 19
7
6
ACR3
2
5
4
3
1
0
MSB
LSB
Addr.: 17
7
6
ACR1
2
5
4
3
1
0
MSB
LSB
unused
Addr.: 20
7
6
AMR0
2
5
4
3
1
0
I
I
I
I
I
I
I
MSB
LSB
Addr.: 22
7
6
AMR2
2
5
4
3
1
0
MSB
LSB
Addr.: 23
7
6
AMR3
2
5
4
3
1
0
MSB
LSB
Addr.: 21
7
6
AMR1
2
5
4
3
1
0
MSB
LSB
unused
I
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
I
I
I
R
&
[6]
[7]
0
1
not accepted
accepted
1
[0]
=
Message Bit
Acceptance Code Bit
Acceptance Mask Bit
DBx.y = Data Byte x, Bit y
MHI015
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