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参数资料
| 型号： | SAF-C167CR-4R33MHA+ |
| 厂商： | INFINEON TECHNOLOGIES AG |
| 元件分类： | 微控制器/微处理器 |
| 英文描述： | 16-BIT, 33 MHz, MICROCONTROLLER, PQFP144 |
| 封装： | PLASTIC, MQFP-144 |
| 文件页数： | 41/91页 |
| 文件大小： | 1517K |
| 代理商： | SAF-C167CR-4R33MHA+ |
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C167CR
C167SR
Functional Description
Data Sheet
44
V3.3, 2005-02
3.10
CAN-Module
The integrated CAN-Module handles the completely autonomous transmission and
reception of CAN frames in accordance with the CAN specification V2.0 part B (active),
i.e. the on-chip CAN-Module can receive and transmit standard frames with 11-bit
identifiers as well as extended frames with 29-bit identifiers.
The module provides Full CAN functionality on up to 15 message objects. Message
object 15 may be configured for Basic CAN functionality. Both modes provide separate
masks for acceptance filtering which allows to accept a number of identifiers in Full CAN
mode and also allows to disregard a number of identifiers in Basic CAN mode. All
message objects can be updated independent from the other objects and are equipped
for the maximum message length of 8 bytes.
The bit timing is derived from the XCLK and is programmable up to a data rate of
1 Mbit/s. The CAN-Module uses two pins of Port 4 to interface to an external bus
transceiver.
Note: When the CAN interface is to be used the segment address output on Port 4 must
be limited to 4 bits, i.e. A19 … A16. This is necessary to enable the alternate
function of the CAN interface pins.
3.11
Watchdog Timer
The Watchdog Timer represents one of the fail-safe mechanisms which have been
implemented to prevent the controller from malfunctioning for longer periods of time.
The Watchdog Timer is always enabled after a reset of the chip, and can only be
disabled in the time interval until the EINIT (end of initialization) instruction has been
executed. Thus, the chip’s start-up procedure is always monitored. The software has to
be designed to service the Watchdog Timer before it overflows. If, due to hardware or
software related failures, the software fails to do so, the Watchdog Timer overflows and
generates an internal hardware reset and pulls the RSTOUT pin low in order to allow
external hardware components to be reset.
The Watchdog Timer is a 16-bit timer, clocked with the system clock divided either by 2
or by 128. The high byte of the Watchdog Timer register can be set to a prespecified
reload value (stored in WDTREL) in order to allow further variation of the monitored time
interval. Each time it is serviced by the application software, the high byte of the
Watchdog Timer is reloaded. Thus, time intervals between 15.5
s and 254 ms can be
monitored (@ 33 MHz).
The default Watchdog Timer interval after reset is 3.97 ms (@ 33 MHz).
相关PDF资料 |
PDF描述 |
|---|---|
| SAF-C167CR-4RMHA+ | 16-BIT, 25 MHz, MICROCONTROLLER, PQFP144 |
| SAF-C167CR-L33MHA+ | 16-BIT, 33 MHz, MICROCONTROLLER, PQFP144 |
| SAF-C167SR-LMHA+ | 16-BIT, 25 MHz, MICROCONTROLLER, PQFP144 |
| SAK-C167SR-LMHA+ | 16-BIT, 25 MHz, MICROCONTROLLER, PQFP144 |
| SAB-C501-1R40P | 8-BIT, MROM, 40 MHz, MICROCONTROLLER, PDIP40 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| SAF-C167CR-LM | 制造商:INFINEON 制造商全称:Infineon Technologies AG 功能描述:16-Bit CMOS Single-Chip Microcontroller |
| SAF-C167CR-LM HA+ | 功能描述:16位微控制器 - MCU 16BIT ROM/ROMLESS RoHS:否 制造商:Texas Instruments 核心:RISC 处理器系列:MSP430FR572x 数据总线宽度:16 bit 最大时钟频率:24 MHz 程序存储器大小:8 KB 数据 RAM 大小:1 KB 片上 ADC:Yes 工作电源电压:2 V to 3.6 V 工作温度范围:- 40 C to + 85 C 封装 / 箱体:VQFN-40 安装风格:SMD/SMT |
| SAF-C167CR-LM-GA-T6 | 制造商: 功能描述: 制造商:undefined 功能描述: |
| SAFC167CRLMHA | 制造商:Infineon Technologies AG 功能描述:MCU 16-Bit C166 CISC/RISC ROMLess 5V 144-Pin MQFP |
| SAFC167CRLMHA+ | 功能描述:16位微控制器 - MCU 16-BIT ROM/ROMLESS ASC SSC 2 kB RoHS:否 制造商:Texas Instruments 核心:RISC 处理器系列:MSP430FR572x 数据总线宽度:16 bit 最大时钟频率:24 MHz 程序存储器大小:8 KB 数据 RAM 大小:1 KB 片上 ADC:Yes 工作电源电压:2 V to 3.6 V 工作温度范围:- 40 C to + 85 C 封装 / 箱体:VQFN-40 安装风格:SMD/SMT |
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