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): 37/160頁
文件大?。?/td> 601K
代理商: P8XC591
2000 Jul 26
37
Philips Semiconductors
Preliminary Specification
Single-chip 8-bit microcontroller with CAN controller
P8xC591
Notes to Table
15
:
1.
When the Transmit Error Counter exceeds the limit of 255, the Bus Status bit is set ‘1’ (Bus-Off), the CAN controller
will set the Reset Mode bit ‘1’ (present), an Error Warning and a Bus Error Interrupt is generated, if enabled. The
Transmit Error Counter is set to ‘127’. It will stay in this mode until the CPU clears the Reset Request bit. Once this
is completed the CAN controller will wait the minimum protocol-defined time (128 occurrences of the Bus-Free signal)
counting down the Transmit Error Counter. After that the Bus Status bit is cleared (Bus-On), the Error Status bit is
set ‘0’ (ok), the Error Counters are reset and an Error Interrupt is generated, if enabled. Reading the TX Error Counter
during this time gives information about the status of the Bus-Off recovery.
2.
Errors detected during reception or transmission will effect the error counters according to the CAN specification. The
Error Status bit is set when at least one of the error counters has reached or exceeded the CPU warning limit of 96.
An Error Interrupt is generated, if enabled.
3.
If both the Receive Status and the Transmit Status bits are ‘0’ (idle) the CAN-Bus is idle.
4.
The Transmission Complete Status bit is set ‘0’ (incomplete) whenever the Transmission Request bit or the Self
Reception Request bit is set ‘1’. The Transmission Complete Status bit will remain ‘0’ until a message is transmitted
successfully.
5.
If the CPU tries to write to the Transmit Buffer when the Transmit Buffer Status bit is ‘0’ (locked), the written byte will
not be accepted and will be lost without this being signalled.
6.
When a message that is to be received has passed the acceptance filter successfully, the CAN controller needs
space in the RXFIFO to store the message descriptor and for each data byte which has been received. If there is not
enough space to store the massage, that message is dropped and the data overrun condition is indicated to the CPU
at the moment this message becomes valid. If this message is not completed (e.g. because of an error), no overrun
condition is indicated.
7.
AfterreadingallmessageswithintheRXFIFOandreleasingtheirmemoryspacewiththecommandReleaseReceive
Buffer this bit is cleared.
相關(guān)PDF資料
PDF描述
P90CE201 16-bit microcontroller
P90CE201AEB 16-bit microcontroller
P9217 PbS photoconductive detector
P930 CdS photoconductive cell
PA025XSB This technical specification applies to 2.5inch color TFT-LCD panel.
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
P8XC592 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:8-bit microcontroller with on-chip CAN
P8XCE598 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:8-bit microcontroller with on-chip CAN
P8XCL580HFH 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Low voltage 8-bit microcontrollers with UART, I2C-bus and ADC
P8XCL580HFT 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Low voltage 8-bit microcontrollers with UART, I2C-bus and ADC
P8Z77 DELUXE 制造商:Asus 功能描述:P8Z77-V Deluxe ATX Motherboard