Motor de Búsqueda de Datasheet de Componentes Electrónicos |
|
CS22230 Datasheet(PDF) 6 Page - Cirrus Logic |
|
CS22230 Datasheet(HTML) 6 Page - Cirrus Logic |
6 / 29 page CS22230 Mini PCI / USB Wireless Controller 6 of 29 DS558PP1 Rev. 1.0 www.cirrus.com 3.2 Digital Wireless Radio Interface The CS22230 digital radio MAC I/F supports multiple radio baseband and RF interfaces. The baseband registers can be programmed during the configuration time using the control port interface. The MAC also provides the capability of programming the signal, service and length on per packet basis without ARM intervention. This significantly improves the performance of the system. There are three primary digital interface ports for the CS22230 that are used for configuration and during normal operation. These ports are: • The Control Port, which is used to configure, set power consumption modes, write and/or read the status of the radio base band registers. • The TX Port, which is used to output the data that needs to be transmitted from the network processor. • The RX Port, which is used to input the received demodulated data to the network processor. 3.3 FEC Codec The FEC codec performs Reed-Solomon code encoding to protect the data before it is transmitted to a noisy channel. It is a similar code as employed by digital broadcast industry, such as ITU-T J.83 for DVB. The RS(255, 239) code implemented by the SWG2710 can reduce error probability to 1/10e-9 in a typical 1/10e-3 error rate environment. The encoder/decoder can be programmed to vary the coding block length (N) and correctable error (t) to optimize the tradeoff between channel utilization and data protection. The range of N is currently setto befrom 50to255,and the t is 8. The symbol size is fixed at 8 bits. Coding parameters can be set real time, allowing maximum flexibility for the system to adjust the FEC setting, such as block size, in order to optimize channel efficiency. The encoder also has a very low latency of two cycles. Both the encoder and decoder are fully pipelined in structure to achieve single cycle throughput. The FEC can be disabled in firmware. |
Número de pieza similar - CS22230 |
|
Descripción similar - CS22230 |
|
|
Enlace URL |
Política de Privacidad |
ALLDATASHEET.ES |
¿ALLDATASHEET es útil para Ud.? [ DONATE ] |
Todo acerca de Alldatasheet | Publicidad | Contáctenos | Política de Privacidad | Intercambio de Enlaces | Lista de Fabricantes All Rights Reserved©Alldatasheet.com |
Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
Family Site : ic2ic.com |
icmetro.com |