參數(shù)資料
型號: P80C591
廠商: NXP Semiconductors N.V.
英文描述: Single-chip 8-bit microcontroller with CAN controller
中文描述: 單芯片8 - CAN控制器位微控制器
文件頁數(shù): 55/161頁
文件大?。?/td> 588K
代理商: P80C591
1999 Aug 19
55
Philips Semiconductors
Objective Specification
Single-chip 8-bit microcontroller with CAN controller
P8xC591
For a successful reception of a message, all single bit
comparisons of at least one complete filter have to signal
acceptance. In case of a set RTR bit or a data length code
of “0” no data byte is existing. Nevertheless, a message
may pass Filter 1, if the first part up to the RTR bit signals
acceptance.
If no data byte filtering is required for Filter 1, the four least
significant bits of AMR1 and AMR3 have to be set “1”
(don‘t care). Then both filters are working identically using
the standard identifier range including the RTR bit.
Dual Filter Extended Frame:
If the Extended Frame Format is selected, the two defined
filters are looking identically. Both filters are comparing the
first two bytes of the Extended Identifier range only.
For a successful reception of a message, all single bit
comparisons of at least one complete filter have to signal
acceptance.
Fig.18 Dual Filter Configuration, receiving Extended Frame Messages.
handbook, full pagewidth
Addr.: 16
7
6
ACR0
2
5
4
3
1
0
MSB
LSB
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
Addr.: 20
7
6
AMR0
2
5
4
3
1
0
MSB
LSB
[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
2
Addr.: 18
7
6
MSB
ACR2
2
5
4
3
1
0
5
4
3
1
0
7
6
5
4
3
2
1
0
LSB
LSB
MSB
LSB
Addr.: 19
ACR3
. . .
. . .
.
[6]
[7]
0
1
not accepted
accepted
=
Message Bit
Acceptance Code Bit
Acceptance Mask Bit
. . .
. . .
.
&
&
MHI018
Addr.: 17
6
7
ACR1
2
5
4
3
1
0
MSB
LSB
Addr.: 21
6
7
AMR1
2
5
4
3
1
0
MSB
LSB
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