Development of the protocol of the interface of data exchange with the GBTX chip

[摘要] The structure of the interface of data exchange with the GBTX chip for the CBM experiment is considered. The interface generates a data package, consisting of the digital codes of signal amplitude, signal superposition in peak detector, signal arrival time and channel number, wherein the event has occurred, all these codes being generated by the readout blocks of IC. The created data package is coded according to the 8b/10b format for transferring to the GBTX chip. The packages register of controlling data (warnings on error and desynchronization) are generated for a correct exchange (correspondence) under the GBTX protocol. The adjustment of the quantity of channels, generating data packages and being connected to the GBTX chip, is possible. The interface has been designed according to the 180 nm CMOS technology of UMC.

[发布机构] National Research Nuclear University MEPhI, Moscow Engineering Physics Institute, Kashirskoe highway 31, Moscow; 115409, Russia^1

[效力级别] 天文学 [学科分类] 天文学(综合)

[关键词] Channel number;CMOS technology;Desynchronization;Digital codes;Peak detectors;Signal amplitude;Signal arrival time;Signal superposition