參數(shù)資料
型號： P83C591VFA
廠商： NXP SEMICONDUCTORS
元件分類： 微控制器/微處理器
英文描述： Single-chip 8-bit microcontroller with CAN controller
中文描述： 8-BIT, MROM, 12 MHz, MICROCONTROLLER, PQCC44
封裝： PLASTIC, MO-047AC, SOT-187-2, LCC-44
文件頁數(shù)： 43/161頁
文件大小： 588K
代理商： P83C591VFA
1999 Aug 19
43
Philips Semiconductors
Objective Specification
Single-chip 8-bit microcontroller with CAN controller
P8xC591
12.5.12 A
RBITRATION
L
OST
C
APTURE
(ALC)
This register contains information about the bit position of losing arbitration. The Arbitration Lost Capture Register
appears to the CPU as a read only memory. Reserved Bits are read as “0”.
Table 24
Arbitration Lost Capture (ALC) (CAN address 11)
Table 25
Description of Arbitration Lost Capture (ALC) Register 1 bits
On arbitration lost, the corresponding arbitration lost interrupt is forced, if enabled. In the same time, the current bit
position of the Bit Stream Processor is captured into the Arbitration Lost Capture Register. The content within this register
is fixed until the users software has read out its contents once. From now on the capture mechanism is activated again.
The corresponding Interrupt Flag located in the Interrupt Register is cleared during the read access to the Interrupt
Register. A new Arbitration Lost Interrupt is not possible until the Arbitration Lost Capture Register is read out once.
7
6
5
4
3
2
1
0
-
-
-
BITNO4
BITNO3
BITNO2
BITNO1
BITNO0
BIT
SYMBOL
BITNO4
NAME
VALUE
FUNCTION
7 to 5
4
Reserved.
Bit Number 4
Binary coded Frame Bit Number where arbitration was lost.
00 -> arbitration lost in first bit of identifier
…
11 -> arbitration lost in SRTR bit (RTR bit for standard frame messages)
12 -> arbitration lost in IDE bit
13 -> arbitration lost in 12th bit of identifier (extended frame only)
…
30 -> arbitration lost in last bit of identifier (extended frame only)
31 -> arbitration lost in RTR bit (extended frame only)
3
2
BITNO3
BITNO2
Bit Number 3
Bit Number 2
1
0
BITNO1
BITNO0
Bit Number 1
Bit Number 0
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