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SAB82525H-V21 参数 Datasheet PDF下载

SAB82525H-V21图片预览
型号: SAB82525H-V21
PDF下载: 下载PDF文件 查看货源
内容描述: 高层次的串行通信控制器扩展 [High-Level Serial Communication Controller Extended]
分类和应用: 通信控制器
文件页数/大小: 126 页 / 741 K
品牌: SIEMENS [ Siemens Semiconductor Group ]
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SAB 82525  
SAB 82526  
SAF 82525  
SAF 82526  
Table 2  
Receive Interrupts  
RECEIVE INTERRUPTS  
RPF  
Receive Pool Full  
*Only activated in Interrupt Mode!  
(ISTA)  
Activated as soon as 32-bytes are stored in  
the RFIFO but the message is not yet  
completed.  
RME  
Receive Message End  
(ISTA)  
Interrupt Mode:  
Activated if either one message up to 32 bytes  
or the last part of a message with more than  
32 bytes is stored in the RFIFO, i.e. after the  
reception of the CRC and closing flag  
sequence.  
DMA Mode:  
Activated after the complete message has  
been read out by the DMA controller.  
RFO  
RFS  
Receive Frame Overflow  
(EXIR)  
Activated if a complete frame could not be  
stored due to occupied RFIFO, i.e. the RFIFO  
is full and the HSCX has detected the start of  
a new frame.  
Receive Frame Start  
(EXIR)  
*Only activated if enabled by setting the RIE  
bit in CCR2 register.  
Activated after the start of a valid frame has  
been detected, i.e. after a valid address check  
in operation modes providing address  
recognition, otherwise after the opening flag  
(transparent mode 0), delayed by two bytes.  
After an RFS interrupt, the contents of  
– RHCR  
– RAL1  
– RSTA – bit 3-0  
are valid and can be read by the CPU.  
Semiconductor Group  
41  
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