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RS8953SPBEPJ 参数 Datasheet PDF下载

RS8953SPBEPJ图片预览
型号: RS8953SPBEPJ
PDF下载: 下载PDF文件 查看货源
内容描述: 高比特率数字用户线( HDSL )信道单元 [High-Bit-Rate Digital Subscriber Line (HDSL) channel unit]
分类和应用: 电信集成电路
文件页数/大小: 173 页 / 1229 K
品牌: CONEXANT [ CONEXANT SYSTEMS, INC ]
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RS8953B/8953SPB  
4.0 Registers  
HDSL Channel Unit  
4.10 Data Path Options  
4.10 Data Path Options  
Table 4-7. Data Path Options Write Registers  
Address  
Register Label  
Bits  
Name/Description  
0xDC  
0xDD  
0xDE  
0xEA  
0xE4  
0xED  
0xEE  
0xF2  
DBANK_1  
DBANK_2  
8
8
8
8
4
7
6
4
Data Bank Pattern 1  
Data Bank Pattern 2  
Data Bank Pattern 3  
DBANK_3  
FILL_PATT  
TSTUFF  
Programmable Fill Pattern (Data Bank Pattern 4)  
Transmit Stuff Bit Value  
ROUTE_TBL  
COMBINE_TBL  
RSIG_TBL  
Transmit Routing Table  
Receive Combination Table  
Receive Signaling Table  
0xDC—Data Bank Pattern 1 (DBANK_1)  
7
6
5
4
3
2
1
0
DBANK_1[7:0]  
DBANK_1[7:0]  
Data Bank Pattern 1—Holds an 8-bit programmable pattern that can be used to replace  
transmit HDSL payload bytes and/or receive PCM timeslots according to the Transmit Payload  
Map [TMAP; addr 0x08] and the Receive Combination Table [COMBINE_TBL; addr 0xEE]  
selections. Both transmit and receive can simultaneously use the same DBANK contents.  
DBANK_1[0] is the first bit inserted in the selected direction.  
The following configuration can cause the HDSL frame to become corrupted:  
DBank_1, DBank_2, or DBank_3 is the source of data for HDSL payload byte 33.  
TFIFO or DBank_1 is the source of data for HDSL payload byte 0.  
The LSB or the DBank_1 pattern is equal to one (1).  
0xDD—Data Bank Pattern 2 (DBANK_2)  
7
6
5
4
3
2
1
0
DBANK_2[7:0]  
DBANK_2[7:0]  
Data Bank Pattern 2—Provides another 8-bit pattern for insertion in transmit HDSL payload  
bytes or receive PCM timeslots. See DBANK_1 above. Multiple DBANK registers may be  
needed to fill transmit HDSL payload bytes reserved by ETSI standards for future  
applications. For example, ETSI specifies R and Y bytes within a 2E1 payload block that are  
currently set to all 1s.  
N8953BDSB  
Conexant  
4-39