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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  
2.3 Transparent Mode 1 (MODE: MDS1, MDS0, ADM = 101)  
Characteristics: address recognition high byte  
Only the high byte of a 2-byte address field will be compared. The whole frame except the first  
address byte will be stored in RFIFO. RAL1 contains the second and RHCR the third byte  
following the opening flag.  
2.4 Transparent Mode 0 (MODE: MDS1, MDS0, ADM = 100)  
Characteristics: no address recognition  
No address recognition is performed and each frame will be stored in the RFIFO. RAL1  
contains the first and RHCR the second byte following the opening flag.  
2.5 Extended Transparent Modes 0; 1 (MODE: MDS1, MDS0 = 11)  
Characteristics: fully transparent  
In extended transparent modes, fully transparent data transmission/reception without HDLC  
framing is performed, i.e. without FLAG generation/recognition, CRC generation/check, bit-  
stuffing mechanism. This allows user specific protocol variations or the usage of Character  
Oriented Protocols (such as IBM BISYNC).  
Data transmission is always performed out of the XFIFO. In extended transparent mode 0  
(ADM = 0), data reception is done via the RAL1 register, which always contains the actual data  
byte assembled at the RxD pin. In extended transparent mode 1 (ADM = 1), the receive data  
are additional shifted into the RFIFO.  
Also refer to chapter 6.1 and 6.2.  
Semiconductor Group  
25  
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