P87C591VFA/00,512 NXP Semiconductors, P87C591VFA/00,512 Datasheet - Page 43

• Manufacturer Part Number: P87C591VFA/00,512
• Description: IC 80C51 MCU 16K OTP 44-PLCC
• Manufacturer: NXP Semiconductors
• Series: 87Cr

Specifications of P87C591VFA/00,512

• Core Processor: 8051
• Core Size: 8-Bit
• Speed: 12MHz
• Connectivity: CAN, EBI/EMI, I²C, UART/USART
• Peripherals: POR, PWM, WDT
• Number Of I /o: 32
• Program Memory Size: 16KB (16K x 8)
• Program Memory Type: OTP
• Ram Size: 512 x 8
• Voltage - Supply (vcc/vdd): 4.75 V ~ 5.25 V
• Data Converters: A/D 6x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 44-PLCC
• Processor Series: P87C5x
• Core: 80C51
• Data Bus Width: 8 bit
• Data Ram Size: 512 B
• Interface Type: CAN, I2C, UART
• Maximum Clock Frequency: 12 MHz
• Number Of Programmable I/os: 32
• Number Of Timers: 3
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• 3rd Party Development Tools: PK51, CA51, A51, ULINK2
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 10 bit, 6 Channel
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Lead Free Status / Rohs Status: Details
• Other names: 568-1256-5; 935268182512; P87C591VFAA

Philips Semiconductors
12.5.12 A
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 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.
2000 Jul 26
standard and extended
frame messages:
extended
frame messages:
example:
7 to 5
Single-chip 8-bit microcontroller with CAN controller
BIT
4
3
2
1
0
7
-
RBITRATION
SYMBOL
BITNO4
BITNO3
BITNO2
BITNO1
BITNO0
bit number:
bit number:
bit number:
RX
TX
6
-
L
OST
Bit Number 4
Bit Number 3
Bit Number 2
Bit Number 1
Bit Number 0
start of frame
C
ID17 ID16 ID15 ID14 ID13 ID12 ID11 ID10 ID09 ID08 ID07 ID06 ID05
NAME
APTURE
13
ID28
00
14
00
Fig.13 Arbitration Lost Bit Number Interpretation.
-
5
(ALC)
ID27 ID26 ID25 ID24 ID23 ID22 ID21 ID20 ID19 ID18 SRTR IDE
01
15
01
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)
02
16
02
BITNO4
VALUE
03
17
03
4
04
18
04
05
19
05
43
Reserved.
06
20
06
BITNO3
3
07
21
07
arbitration lost
ALC = 08
08
22
08
09
23
BITNO2
10
24
2
FUNCTION
11
25
ID04
12
26
BITNO1
ID03
Preliminary Specification
27
1
MHI013
ID02
28
P8xC591
ID01
29
BITNO0
ID00
30
0
RTR
31