Proceedings Chapter
Reference
Specification and simulation of ALICE DAQ system
DI MARZO SERUGENDO, Giovanna, et al.
Abstract
The Trigger and Data Acquisition System of the ALICE Experiment has been designed to support the high bandwidth expected during the LHC heavy ion run. A model of this system has been developed. The goal of this model is two fold.First, it allows us to verify that the system-level design is consistent and behaves according to the requirements. Second, it is used to evaluate the theoretical system performances using the measurements done on sub-systemsprototypes. This paper presents the specification and simulation of a model of the ALICE DAQ system using a commercial tool (Foresight). This specification is then executed to simulate the system behaviour.(Abstract onlyavailable, full text to follow)
DI MARZO SERUGENDO, Giovanna, et al . Specification and simulation of ALICE DAQ system.
In: CERN. Proceedings of the 6th Workshop on Electronics for LHC Experiments . Geneva : CERN, 2000. p. 419-423
DOI : 10.5170/CERN-2000-010.419
Available at:
http://archive-ouverte.unige.ch/unige:48374
Disclaimer: layout of this document may differ from the published version.
1 / 1
.0/13246587:9<;>=@?A7:B@CD?AE@F@;DGIHJ/KL;NMO58E@;NM2QP<G
H/ORS5DEOF@?TR"UVMJ7:?<GIWX/RY2[ZQZ[58Z[;D\];D^`_T5D2QZQZ[2Q?
acb$dIefghjikmlOnpoqb$rsrutAvwbAdtAeyxsb$z
lOgmdz{V|~}D|$|gmzgq:t}A8{A xseyqgmdrutAz
xsbNt$zzt8-x0t$dmb8oqgmdzo~f
0:cAL
fg dxs$$gqdt$zt$etXhjoqxuxseyxsb$z cjh¢¡£ ¤eygm¥¦b$a
efg§hjikmlOn gm¨©8gmdxu¥Tgmze-ft$vwgqgmzªgmxuAzgm0eybS©©8b$de
efg`fxs$fYvtAz xseyfYgq¨<©8gmoqeygq«dxuzefgi¬Tl fgmt¤
xsb$z0dzOIh¥§bgqrbAa®eyfxu¤eygq¥¯ft$jv8gmgqz0gq$gqrubA©wgq
fg$b$tAr@b$a]efxs¥§bgqr®xseJbAacb$rs°@xsde:{LxuetArursb ±eyb
Agmdxuac¤>eyftAeeyfg3¤egm¥T²[rsgmAgmrgqxs$zpxuoqb$zxsegmzeTt$z
v8gmft$gmtAomoqb$dxuz³eb"efgdgmxsdgq¥§gqzey¢gmombAz{Vxuexs
gq0eyb"gmNtArutAeygeyfg§eyfgqb$dgmexuoqt$rO¤eygm¥´©8gmdacb$d¥Tt$zoqgm
xszeyfg"¥Tgmt$dgm¥TgmzebAzgSbAz>v²µ¤eygq¥§§©db$eb$²
e¤©8gm fxs-©t$©8gmdj©dgqgqz<eIeyfg¢©wgqomxs¶omtAeyxsb$z3t$zXxs¥T²
rutAeyxsb$zSbAaLt¢¥TbgmrDbAaLeyfghjikmlOn>Ih¢¡·¤egm¥¸xuz¢t
oqb$¥T¥Tgmdomxst$rAeybb$r{:omtArursgm°wb$dgmxuAfe:DkztAxseyxsb$z{:efxs©tA²
©8gmdgqoqdxsvwgqjefg¢©8gmdacb$d¥Tt$zoqgmIdgmtAo~fgmv¤eyfg¥Tbgqr
dxszefgxs¥¢rutAeyxsb$z
¹º ¹»j¼½¾¿jÀIÁ¼Â¾-»
fg"hjikmlOn
dxs$AgmdtAzÃt$eytªhjoq<xuxuexubAzäeygm¥
ÄIh¢¡£xsdgmxsdgq-ebI©©8b$deLt$z±t$A$dgm$tAeygOgmAgmzeLvxsru²
xsz`vt$z xsef3b$a@©3eybÅ0ƤeygqÇAIt$z3teb$dt$$gomtA²
©t$vxsruxse¤"b$aO©3eyb0|A}AÈ3ƤeygqÇAIeyb¥TtAIeybAdtA$g fg
¤egm¥É¥¢e®tArubvwg-t$vrsg eyb¢omb$¥vxszgIxsÊwgqdgqze®e¤©wgq]b$a
©f<¤xuoqËgmAgmzeyÌLrub>dtAeygmËbAaOlOgqz<edtArt$z§XxszvxutAËeydxuA²
Agmd$gqzgmdt$exuz3eyfg`rst$d$gqeacdt$oqeyxsb$zYb$aefg`eybAeytAr]tAeyt
Ab$rs¥Tg<{Oeb$$gqeyfgqd xseyfÍact$eygqddt$egm¢bAaIxugqrugqomeydb$z>t$z
xs¥¢bAz"gq$gqz<eN
fgh-ikmlOnÎIh¢¡Ï¤eygm¥ft$v8gmgqzYgmoqb$¥T©wbAgqªxsz
t"gmejbAa®ftAdt$dgt$z0b$acet$dgombA¥§©8b$zgmzey fggq²
et$xsrugq>¤egm¥¦gmxuAzÃxsAb$xszXb$z«xsz>©t$dt$rsrugqr] xseyfÃefg
gm$gqrubA©¥Tgmzeb$a©db$eb$e¤©wgq±b$aeyfgqgoqb$¥T©wbAzgmzeN§Ðg
xsfSeyb§$gqdxsac¤Teyfxsgmxs$z`xszSbAdgqd]ebo~fgqo~ÑTeyftAeJxseJoqt$z
dgmtAo~fÃeyfg³gq¨<©8gmoqeygq>v8gmftxsb$dt$zÍeyfg"eytAdAgme¢©8gmdacb$d²
¥TtAzomgqN
¬jbgmAgmd{Òo~f`tombA¥§©rugq¨§¤egm¥¸ftA©©wgqzeybvwgxsac²
¶omrseeyb§$gmdxsac¤§¥TtAz<t$rsru¤{Òxuzomgeyfgqdg-xuzb§ombAddgm©wbAz²
xsz¥TtAeyfgq¥§tAeyxsomtArgmomdxs©eyxsb$zh&eybbAreyftAe®gmzt$vrsgm®bAzg
ebªgm¶zg"t¥§bgqrb$aIefg³¤egm¥X{@tAz>ebª©8gmdacb$d¥Óxue
Agmdxu¶omt$exubAz³xs eyfgmdgmacb$dg±t$z"gm¨eydgm¥Tgqru¤`NtArutAvrsgfgmrs©
fxsY©t$©8gmdª©dgqgqzeyeyfgÍacb$d¥§tAr©8gmomxs¶oqt$eyxsb$zÔt$z
xs¥¢rst$exubAz0b$a]eyfgTIh¢¡6bAa®eyfg§h-ikmlOnÕgm¨©8gmdxu¥TgmzeN±h
¥TbgqrursxuzIt$zxs¥¢rst$exubAzebb$r{moqt$rsrugq±°b$dgmxs$fe:{mxugm
eb©8gmoqxuac¤"eyfg¤eygm¥Öxuz3tAzt$veydt$oqe¥TtAzzgmd§c¤<eygq¥T²
rsgmAgmr£xuzb$dgqdebacbom bAz"efgaczoqeyxsb$ztAruxse¤<
¹A¹º ×¾½ Ø®ÙÂÚ±ÛI¼
hÓ°bAdgqxs$fe ܵ©wgqomxs¶omtAeyxsb$zÝ6Þu|àßxu3¥Tt$gbAa¢fxsgmdt$d²
o~fxuoqt$rËtAeyt3ábÉxst$$dt$¥T{8¶zxseyg`eytAeygxst$AdtA¥TN{DtAz
©xugqomgmb$atI©dbomgmdtArÒ¥TbgmrsruxszIrst$z$tA$g<
fg®©8gmoqxu¶²
oqt$exubAzS©dbxugqJt§ztA¥¢vxs$b$gmomdxs©eyxsb$z³b$aefg±¤²
egm¥X
fggq¥§tAzeyxsom"b$aefgª©8gmomxs¶oqt$eyxsb$z ©dbxsgm³t
¥Tbgqrb$aËefg¤egm¥¯ fb$gv8gmftxsb$dIxsjAgmd¤SoqrubAgeb
efgv8gmftxsb$d bAa@eyfg¤egm¥X
fg$gqdxs¶omtAeyxsb$z"©db<oqgm
xs©8gmdacb$d¥Tgm«dxsz3eyfg³xs¥¢rutAeyxsb$zSkegq¥§bAzeydt$eygq
efgaczoqeyxsb$ztArLombAddgmoqeyzgqb$aOeyfg¤eygm¥X
fg3°wb$dgmxuAf<e§xu¥rutAeyxsb$zpombAzxseyb$aeyfg3dgqt$rs²[exu¥Tg
gq¨gmomeyxsb$zÔbAa`eyfgp©8gmomxs¶oqt$eyxsb$zOâkeYb$Ê8gmdgmvA$xsz
aczomexubAz@ruxsÑ$gJt$zxs¥Tt$eyxsb$z¢b$axst$AdtA¥TN{mvdgmt$Ñ©8b$xszey{mtAz
¥TbAzxueb$dI xszb
fgxs¥¢rst$exubAz3xugm3eybSgmNt$rst$eg
efg®©8gmdacb$d¥Tt$zoqgmLb$aefg®©wgqomxs¶gm¤egm¥XDkeVtArub ¥Tt$Ñ$gq
xse©8b$xsvrsg§eb©wgqdacbAd¥b$¥TgTt$zt$rs¤<xso~ft$efg¤²
egm¥ãgmzxseyxsxue¤`ebb$¥Tg±Ñ$gq¤©t$dt$¥TgqeygmdJäzgomtAz³tArub
gq¨©rubAdg bAeyfgqdJtAruAb$dxuef¥TN{Òt$zSzgm·t$do~fxseygqomeydgqN fxs
xsjgqacr fgmzXefg¶ztArtAdo~fxuegmomedgft$-zb$eI¤AgmeIv8gmgqz
gm¶zgqÕÄt$§xu§eyfg"omtAgSacb$d§hjikmlOn±£y{xuzoqgSxsefgmrs©eb
oqb$¥T©tAdgt$do~fxseygmoqeydgmbAd o~fb$xsomgqbAaxs¥T©rsgm¥TgmzeytAeyxsb$z
¹A¹<¹º åIæ®Ø®ÁÂçOÂÁè@¼Â¾»
fgomddgmzeVhjikmlOnª©8gmomxs¶oqt$eyxsb$z¢gmomdxuv8gmOeyfgé:êëwìqí
îµïcð ëwñ$ò
ïcîµó
bAa±eyfgª fb$rsgXgm¨©8gmdxu¥Tgqz<eSt$z&bAaefgX¥TtôybAd
v²µ¤<eygq¥TNÌ
dxuA$gqdN{
dxs$Agmd@gmeygqomeb$dN{
dt$o~Ñxsz±-gq²
egmoqeyb$d{@Ih¢¡{OõËgmd¥Tt$zgqze¢t$eyteb$dt$$g
fg©wgqomxs²
¶omt$exubAzXacb$rsrsb -efggmomdxu©exubAz0bAa®hjikmlOn Ih¢¡6AxuAgmz
xszÃÞ}$ßö{xszT©²µeybA²[tAeyg±©tAdtA¥§gqeygqdNt$rsgm
Y÷ ø§ùú:ALûûüËýú:þ
fg§eybA©²[rsgmAgmr@°bAdgqxs$fe-©8gmoqxu¶oqt$exubAz0b$a]eyfgThjikmlOn
jh¢¡·¤eygq¥xu¥Tt$gb$aeyfg±tAeyt§áb&xst$$dt$¥¸bAaV°@xuA²
dg0|A`v²[¤egm¥TtAdg©wgqomxs¶gm« xseyf>°b$dgmxs$fe±©dbA²
©eyÇAb$e©eIxszeygmdact$oqgmt$¥TbAzTv²[¤egm¥TN
fgkzeygqdtAomexubAz³bAdomg±gmrsgm¥Tgmze AgmzgqdtAeygmgq$gmze t$e
t3dt$egTb$aÿ³¬-xsedxsvegmYt$oqomb$dxsz"eyb3t3õËb$xsbAz
xueydxuveyxsb$z dxuA$gqdgmegmoqeyb$ddgmoqgmxs$g`efgSgq$gmzexs$²
zt$rgq¥Txueeygm3v¤"eyfg¢kz<egmdt$oqeyxsb$z"b$domgtAz3xszacb$d¥ efg
dxuA$gmd¤<eygq¥X fg`rutAeyegmd¢gq¥Txue¢iD{Vi|${Vi}XxuAzt$rs
ebJtAd eyfg dtAo~ÑxuzTgmegmomeb$dNËhjomoqb$dxszeybefgdgq²
oqgmxs$gqxs$zt$rsacdb$¥6eyfgJedxs$AgmdV¤egm¥X{:eyfgeydt$o~ÑxszIgq²
egmoqeyb$dgqzStAeyteyb¢efgIh¢¡p¤±ÄIh¢¡·v²µ¤eygq¥3£{
tAz gq¥Txue"v¤&xs$zt$rsSeybpeyfg dxs$Agmd³¤egm¥X fg
jh¢¡¤©8gmdacb$d¥§Tefg3v²[gq$gqz<e§vxsrsxuz8{]eyfgqzÍefg
gq$gqz<eËvxursxsztAzT¶zt$rsrs¤¢gmz]eyfgIgq$gqz<e®eybefg õ]
¤<§cõËgmd¥Tt$zgqzeJt$eteybAdtA$g<£
°@xs$dg`|$Ì ä$gqdtArur8hjdo~fxseygqomeydg
÷ L ú:üËýú:þ
fghjikmlOn&edxs$AgmdI¤egm¥¯ft$jeyfdgmgrsgmAgmrsNÌ®rugq$gqr
ÄiD£y{rsgmAgmr]|Tci|$£y{t$zrsgm$gqrL}Xci}D£y
iYgqdAgm§eybedbAvwg"eyfg"gmeygqomeb$d§tAe6|}Ò{
fgmdgxu¯eyfggmAgmze exu¥Tg< i ©8gmdacb$d¥T
©t$eyÇAaceydg"Äõ]ÇA° £Ë©dbAeygqomeyxsb$z3tAe{xgu{zb`bAeyfgqd
xuzeygqdtAomexubAz"¥e ft$g±eytAÑ$gqz³©rst$oqgdxuzt§AxuAgmz
eyxs¥§gxszeygmdNt$rvwgqacb$dg³tAz>tAaceygqd§efg"b<oqomddgmzoqgSb$a
eyfg§omddgmzejgq$gmzeN fg§eyxs¥TgxszeygqdNt$rOgq©wgqz±b$z
eyfg§e¤©wg§b$a®efg§gm$gqze:jh e-i8{Jg§ft$g¢xs¥¢rst$egm
eyfgªomt$g3 fgqdg3tAz&gm$gqze`omtAzpv8g0gqxuefgmdlOgmzeydt$r{
-xs¥¢bAz{xugqrugqomeydb$zO{]0xuzvxst${Jb$d`t«oqb$¥¢vxuztAeyxsb$z
b$aIebXb$d§¥Tb$dg`b$a efgmg"e¤<©8gm3kzÍeyfg³omtAg³b$a t
omb$¥vxszgm3gq$gmzeN{eb`b$dI¥TbAdgoqrutAgmIbAa@gmegmomeb$d
¥§t¤«v8g"edbAvwgqªh¯oqrutA§b$a gmeygqomeb$d§xs§eyfggme
b$a@gmegmoqeyb$dIxsz$b$rs$gq³xsz3t$zgq$gmze bAat`AxuAgmz"e¤©wg
io~fgmo~Ñ@eyfgv¤átA-bAaeyfggmeygqomeb$dOoqb$zoqgmdzgm
v<¤efg¢oqddgmzeIgq$gqz<eNkaËb$zgb$aËefgm¥´xs-v¤{efg
edbAvwgq{efgmz3i`bgmIzb$eIgmz3tAz¤³xuAzt$reyb`efg
gmegmomeb$dNJäeyfgqd xsg<{Nefg dgq¥Tt$xszxuz-oqrutAgmËbAagq²
eygmoqeybAd dgmoqgmxs$geyfgi§xs$ztArö
i|j©wgqdacbAd¥Ttzgm õJÇ$°«©db$egmoqeyxsb$zSacbAdeyfg±©8gmdxub
©eyb ªÅÒOka@eyfggmAgmzeomt$zv8gt$oqomgq©eygq"tA
xueËxsN{Òeyfg oqb$ddgq©8b$zxuzjomrst$gmËb$awgmegmoqeyb$dËt$dgxuz²
acb$d¥§gqt$e ÈÈÒ
fgeydxuA$gqdz¥vwgqdOt$dg]xs²
eydxuveygm3v¤"i|A®kz3efgomtAgbAa@t`ombA¥¢vxszgmgq$gmzeN{
eyfg®õJÇ$°`©dbAeygmoqeyxsb$z±¥Tt¤jtAomeLt$t ¶ruegmd{qb eft$eLbAzru¤
bA¥§g¢omrst$gqjb$a@gqeygqomeybAd-t$dgt$rsrsbJgq3eyb`oqb$zeyxszg
xuef3eyfggq$gmzeNËkz3eyfxuIoqt$g<{bAzrs¤Sb$¥Tgomrst$gq b$a
gmegmomeb$ddgqomgmxs$g±tAz³i|jtAomoqgm©eNkaOzbTi|-xs $gqzgmd²
t$eygq{<eyfggm$gqzexsIdgôygqomeygq
°b$rsrsb xuzeyfg±i|${Arugq$gqr8i}¥TtAÑ$gmeyfg¶zt$rLedxs$Agmd
gmoqxuxubAz czb¥Tb$dg`ombA¥¢vxsztAeyxsb$z£yke§©8gmdacb$d¥§t
õ]Ç$°Ô©dbAeygqomeyxsb$z·acbAdeyfgX©8gmdxsb<·©·ebÒ{
t$z«gqeygqomeybAdt$dgxuzacb$d¥§gqÃt$e !"#}Ò
fg
õ]Ç$°6©db$egmoqeyxsb$z>¥Tt¤Ydgm¥Tb$g³bA¥§g³omrst$gqbAaIgq²
eygmoqeybAd ka®tAaceygqd-õJÇ$°·©db$eygqomexubAz{efg§¶zt$r@edxs$Agmd
b$eomb$¥Tg"exursrIxszomrsgq¥Tb$dg"eft$zpb$zg"oqrutA{@bAzg
b$a®efg©t$deyxsomxs©t$exuz³omrst$gq-xs±o~fb$gmz0©dbA©wbAdexubAz²
t$rsru¤Yeybªeyfg³dgqxudgm>Ih¢¡ÉdtAeygqN
fgSdgm¥Tt$xszxsz
omrst$]b$agmegmomeb$dJdgmoqgmxs$gq]t$z³i}At$omoqgm©e]xs$ztArö{Aefg
b$eyfgmd dgqomgmxs$gt$z"i}Adg ôygmoqexs$ztArö
i8{i|A{i}SxuAzt$rsjtArut¤It$ddxuAgxuzXefxsbAdgmdke
¥§t¤ftA©©wgqzeyft$ei%$s{qi|$s{qacb$dOtIombAzgmomeyxs$g®gq$gmzeN{
t$ddxs$g-vwgqacb$dg-i}Äxög<s{eyfggmgqzomgiTi|Ii%$Ai|$
i}Txujt$rsrubgm£¬jbgm$gqdi}t$ddxuAgmt$rsJt¤vwgqacb$dg
i}%$s{]xszomg0rugq$gmr }«xs$ztAru`dgmtAo~fÍefg3gqeygmoqeybAd`tAe
&#}Ò
')(+*-,.0/21ð$î43
ì
îµïcð ë65:ë
î43 187 ñAò:9
°bAd±t$rsrOedxs$Agmde¤©wgqN{8zb"b$efgmd±xszeygmdt$oqeyxsb$zªomt$zªeytAÑ$g
©rutAomg±dxuz§efgõ]ÇA°Ã©db$egmomexubAz³xszeygqdNt$rÞ<;>=@? A
=Tß{I fgmdg>= xseyfgYõ]ÇA°¸©dbAeygqomeyxsb$z eyxs¥Tg<
fgY©tA²
dt$¥Tgqeygmd®gmSacb$deyfg-õ]Ç$°©db$egmomexubAzxuzegmd:tArut$dgIefg
acbArursb xsz8Ì
xu¥b$zÌ =CB>
xugqrugqomeydb$zOÌ =CBEDF
lOb$¥vxszt$exubAzcxu¥b$zO{xugqrugqomedbAz£yÌ =CBEDF
lOgmzedtArö{AXxszvxutAN{äeyfgqd omb$¥vxszt$exubAzNÌG=CBHÒ
I)(+JA7
3 ë îK
ñ
îL3 9ñ
îMON 5Në
/ ê î
fgTgmAgmze±dtAeygq©dboqgmv¤Xeyfgoqb$rsruxsxubAz±t$zdgq²
oqgmxs$gq³tAe eyfgiTrugq$gmrft$g±v8gmgmzgqexu¥Tt$egmt$jacb$rsrub
fgJeb$eytArz<¥¢v8gmd@b$awxuzeygqdtAomexubAzeft$eOftAgJeb-v8gJet$ÑAgmz
xszeybItAomoqb$zeLacb$dõ]Ç$°"©db$egmomexubAz±xugqeVeybIÿ¬-<Jäzru¤
Å3¬j"t$dgSxsz<egmdgmeyxsz0tAe¢efg³©f<¤xuoqrsgmAgmrc©f¤xuoq
gq$gqz<eN£Dhjrsr<xuzeygqdtAomexubAzV©tAdexuoqxu©tAeyg®xszefg®õ]ÇA°³©dbAeygmoq²
exubAzY©dboqgmN{Dxg<s{Leyfgmxsdbomomddgmzoqg¥Tt¤X©8b$xsr®t$zbAeyfgqd
xszeygqdgqexuz"©f¤xsomgmAgmzey±tA¥§bAzSefgTxsÊwgqdgqz<eomrst$gm
bAajedxs$AgmdNª°bAdTxuzeytAzomg{ËefgdtAeygSbAa§lOgqz<edtArJgq$gqz<e
ft$vwgqgmz0gqexu¥TtAeygmªeyb³vwg3|8¬j{8xsedxsvegm0xszXefg
acbArursb xszS¥Tt$zzgmdÌÅAS¬-tAdgÃܵ©dgmÝlOgmzeydt$rOgmAgmzey{
}2D~} ¬j>tAdgÍt oqb$¥¢vxuztAeyxsb$zÏbAa0lOgmzeydt$r§t$zÏ-xs¥¢b$z
gq$gqz<eN{V}%Dà}"¬-`t3ombA¥¢vxsztAeyxsb$zb$alOgmzeydt$r®tAzY-xsgmrsgmoq²
edbAz0gq$gmzeN{wt$z0È$³¬j§t$dg¢AxuAgmzXv¤3eyfgoqb$¥¢vxuztAeyxsb$z
bAaTlOgqzeydt$r{Ëxu¥b$z·t$zÍxugqrugqomedbAzÍgq$gmzeNÍXxszvxutA
gq$gqz<e bzbAeoqb$¥vxuzg xseyfbAeyfgqd gm$gqzey
tAvrug`|AÌnJ$gqz<ePItAeygq t$e iTkz©e
Q RTS RTUWVYX Z\[][ ^_8`ba8[
Q cde fg4f fg4f h8i j4k8k8kmln
RTS opo opo h8i h8i q8h8kmln
RTUWV%X opo re opo re q8h8kmln
S s ocde f8t8k8imln
uwvyxyz{^_8`ba8[ cdddln
|%`L}y~L odddln
^_8`La8[ dddln
÷ LAL Ãúyú<$
fgaczomeyxsb$zt$rËv8gmftxsb$db$aJeyfgedtAo~Ñ<xsz³gmegmomeb$d
ft$ v8gmgmz3©8gmomxs¶gq³xszeyfgacbArursb xuz§¥TtAzzgmdÌ
hjbb$z3tAjxseIdgmomgqxuAgmItSi`xuAzt$r{t`gmegmoqeyb$d-vwgq²
omb$¥Tgq3ܵv¤ÝD fgedxs$Agmd ¤egm¥ b<gqjzbAeIgmz
t$zbAeyfgqd iTxs$zt$rLeybTtv¤`gmeygqomeb$d
fgªgmeygqomeb$dSt$xseSacb$d"t>i|3xuAzt$r-eyftAe³ft$"eyb
t$ddxs$g-t$eO"ÈÈÒkaVefgmdg-xszb§i|jxs$ztArö{$eyfgmz
eyfggmegmoqeyb$dOdgqgqeeyfgJoqb$rsrugqomeygq¢tAeytD{mtAz¢v8gmoqb$¥Tg
t:tAxurst$vrug`czb$eIv¤V£y®kaefgi|xs$ztArLt$ddxs$gqN{Aefg
gmegmomeb$d@dgq¥§tAxuz¢v¤zeyxsreyfggmzb$aefgdgqt$xsz
©wgqdxsb{zrsgmSefg0¥ruexu²µgmAgmze`vÊwgqdSxsSacrsrTÄt$rsr
gm$gqze rsb$e b<oqom©xugq£
fgTt$et³tAdg§eb$dgmXxszt³¥ruexu²µgmAgmzevÊ8gmdScbAzg
vÊ8gmdSacbAd`gmtAo~f·-i£®kz&efxu³xs¥¢rutAeyxsb$z{JgmAgmd¤
gmegmomeb$dIft$ tT¥¢rseyxs²µgm$gqzevÊwgqdIb$aÅT©wbAxseyxsb$z
°b$rsrsb xuz-eyfgJi|A{:eyfgJgmegmomeb$dt$xseacbAdefgJi}jgq²
omxsxsb$zOkaxuexst$z"i}$dgôygqomeN{$efg±t$ettAdgxsoqt$dgm
t$zXtSrsb$e-xu-acdgqgmXxszXeyfg¢¥¢ruexu²µgmAgmzeIvÊ8gmdcefxs
b$©8gmdt$eyxsb$zeytAÑ$gqS|Ò£ykaxuexst$zi}At$oqomgm©e:{Defg
t$et3t$dgedtAzacgqddgmeybefgIh¢¡Ôb$gmdeyfg`ombAddgm²
©8b$zxuz·-iNXrseyxs²[gq$gmze"vÊ8gmd3t$dg0°@k°ä
<gmgqNÌTt$eytt$dg`gmze§b$d§xuomtAdgmÃxsz>efg³bAdgmd
eyfgq¤XJgqdgdgqomgqxuAgm3²zb ܵgmAgmzejbAgmdeytAÑ<xszAݧxs±t$rs²
rubgm
Ã÷³ü ~ýyú:þ
°@xuAdgª}pgm©xuoqey3eyfgªo~fgm¥TtAeyxsoªxsgmbAaeyfgYIh¢¡
v²µ¤<eygq¥X{fb xsz`efg¢oqt$gb$aËt³gmegmomeb$dftxuz`}
i fg]gmrsgm¥Tgmzeyxuzefxs¶AdgËtAdgËgmomdxuv8gmv8gmrsb¢Ì
LDC 5 LDC
...
...
...
Switch
PDS
DDL DDL
FEDC Bus RORC
Bus
FEDC
GDC
Disk
PDS
1 20
10
1 RORC
1 5
1 5
1
GDC 100
Disk
50 100
...
Switch Detector Buffer
1 1
1
100 MB/s
100 MB/s
25 MB/s
25 MB/s 40 MB/s
°@xs$dg±}8ÌIh¢¡ v²µ¤eygm¥
h
3:îL3
ì
î[ð 1
Tñ
îñ Mï
ë:A
M (
edtAzacgqd±efgt$et
acdbA¥Öt`vÊwgqdjbAaOefg¢gmeygqomeb$djeb`eyfgIh¢¡{tAejefg
dtAeygXbAaS|8>XƤ<egmÇ$6t$eytÍt$ddxs$g3xsz)tPIgmtA²
b$ePIgmoqgmxs$gqd3lOtAd6WPäOPl £ygq$gmdt$r-i`¥Tt¤
vwg oqb$zzgqomegmTeybefg t$¥TgmPäOPl :kzefg gm¨tA¥§©rug{
eJbÍ-i3tAdgombAzzgmoqeygq eybpgmtAo~fPäOPl ]t$et
t$dggqz<e¢xuzgm©8gmzgqzeyrs¤tAzYxuz>©t$dt$rsrugqr®t$rsb$z"gq²
gmd¤S-ika@eyfg¢ombAddgm©8b$zxszPäOPlÃxsIacrsrö{wefg
vÊ8gmdIrubAeomt$zzb$ev8gdgqrugqt$gm
h K3
ñAíJê
îK3
ì
3qï 7 3
1 ñ 1
K K
( eb$dgmXefg
t$et¯dgmoqgmxs$gqacdb$¥ efg-ih vÏbAaÕ|)
XƤ<egmÇ$ªxuYgmÏeb edtAzacgmd0efgpt$et acdb$¥ t
PäOPl"eb-tibomtAr-tAeytlOb$zoqgmzeydt$eb$dÄil £y:gq²
gmdt$rPäOPlOoqt$zv8g]©rs$Agmxszeyfg]t$¥Tg®ilYceb
PäOPlO{xsz`eyfgjgm¨tA¥§©rug£y-tAeyttAdgIedtAzacgmddgq§eb
eyfg±ilYxsz³efg±dgqomgqxuAgm`bAdgqdN
fg±omtA©t$oqxue¤TbAaVt
PäOPl>xu-gqeIeyb|~}XƤeygqNka@t`iTlÍxsjacrsrö{wefg
omb$ddgm©wbAzxsz!PäOPlO t$dg±vrubo~ÑAgm
il fg±vjxuIoqb$zzgmomegm"t$e ¥Tb$eeybbAzg±il
keJgmz]tAeytgmgqz<exutArurs¤§eyb¢efgjiTl
fgqdgqacb$dg<{
t¡PäOPl { fxuo~ft$zeyeyb"gqzt$et8{8ftAeb³t$xse
©wbAz`eyfgjombA¥T©rugqeyxsb$zbAa8efgIgmzxuz¢b$aDeyfg-t$etb$a
eyfg©dgmoqgmxszPäOPlm
h MËð
ì ñ$òñ
îñ ð ëì
3 ë î1 ñ îµð
1 M
(
xsjdgm©wbAzxuvrsg
acb$dËv²µgm$gqzevxursxsz8hjËbb$z¢tA@tiTlXdgqomgqxuAgm
t$rsrËeyfgtAeytombAddgm©8b$zxsz³eybt$zgmAgmze:{Dxse±vxsru
eyfgIv²µgmAgmzeËt$z§gmz®xse®eybtAxuAgmzXrubAvt$r-tAeyt
lOb$rsrugqomeybAd¢yl £ykzeyfggq¨t$¥T©rsg<{gq$gmd¤`iTl>dgq²
omgmxs$gq3acb$d0©xugqomgq3b$a§t$etÎÄeJb·acdb$¥ gqt$o~fÕombAz²
zgmoqeygm!PäOPl £<v8gmacbAdg®gmzxuz xueeybIefg-l ~v²
gm$gqzeyOt$dg]gmzexsz¢o~fdb$zb$rsb$$xsomtArb$dgmdOeyb-eyfgl
fg-oqt$©tAomxse¤bAaLt¢iTlxsgqe]eyb|~}XƤeygmn]²
gmd¤ªiTl gmzeyfgSt$et3b$atX$xs$gqzYgm$gqzeeybXefg
tA¥§gTl fgo~fb$xsomg¢b$a®efg"l·acb$d-tSedxs$Agmd
gm$gqze`z¥¢v8gmd6¢ÎxsÌ@¢¸Íä |8 c fgqdgÍ|)«xs
eyfg`z¥vwgqdb$aTlO£yv²µgmAgmzeytAdgTgmze±eyb3t
xueo~f«eyftAeacb$dt$deyfgSv²[gq$gmzeebXeyfgTl
t$e§tªdt$egSb$ajÅ00ƤegmÇ$kaIeyfgoqb$ddgq©8b$zxuz
Tl xu±acrsr{DeyfgTiTl)xu±vrsbo~Ñ$gmOhjrsrËilOt$z
TlOItAdg±rsxuzÑ$gm"eybefgt$¥Tg± xueo~f
fg
.1
ð ë îíJ ë£
ï¤ïcî ñAò
1
ñ
îL3
.TJ
(
xu§eyfgSgme
¥§tAg«b$a§b$zg«il { eyfg«vXtAz6eyfgÃoqb$zzgmomegm
PäOPlO
h ¥Jò
ð ñAòñ îñ ð
òcò
3 ì î[ð
1 ¦¥§ ( xuJdgq©8b$zxsvrug acbAd
eyfggm$gqze vxsruxszD]ke-JtAxueIacb$djt$rsrilOjeb`gmz
eyfg`v²µgmAgmzeyXäzoqgTeyfg`gq$gqz<exsoqb$¥T©rsgmeyg{Lefg
fb$rsggm$gqzeOxs@eb$dgm§b$ztxuÑVVnJ$gmzeOtAdggmzexsz
o~fdbAzb$rsb$Axuoqt$r8b$dgmdn]tAo~flÃftA xueIb z"xuÑV
fgXrsxuzÑÍvwgqeJgqgmz&efg>TltAz·eyfgXxuÑ>ftA`t
dtAeyg`bAa}AÈ3XƤeygmÇ$
fgªlÕomt$©t$omxse¤0xs¢ÈD|~}
XƤ<egm
fgmdg-xsb$zg
ï
9Facb$dgmtAo~fl {AgqSacbAdeybAdxsz
gm$gqzeyÔh-bb$z t$"t>¶rsgb$a³|ÍƤegmxuvxurse
b$zXefg¢xsÑL{wefg¢ fbArug¶rsg¢xs-gmzeIebSt$z0t:tAxurst$vrug
õËgmd¥§tAzgmzeJ-tAeyt¢eyb$dt$AgcõJ-O£yA°@xursgmt$dgIgmzeeyb
tÍ xseyo~f eyftAe³acbAdt$d³eyfgYtAeyt>ebÍefgYo~fb$gmz
õ]{®tAetÃdt$eyg3bAa±}$ÈYXƤeygmÇ$ hjrsrjxsѳt$z
õ]It$dg±ruxszÑAgm"eybTeyfgt$¥Tg± xseyo~f
h * 3 18¨
ñ$ë
3 ë î
Tñ
î
ñª©
î[ð 1ñ
¤3
*
«©
(
dgqomgqxuAgm§¶rugq
b$a |Ƥeygq acdbA¥ãeyfg±Ih¢¡<h6õJ-xs omb$zxsgmdgm
eybv8gt$z"xuz¶zxuegvÊ8gmd fgqdg±t$dgÈTõ]
¹¬Õº «Ø®ÙÀ<®¼Ù
fg°b$dgmxs$fe&©8gmoqxu¶omt$exubAzgqoqdxsvwgq t$v8b$gÎftA
v8gmgqzªxs¥¢rst$egm xuefªefgjh¢¡Îv²µ¤eygm¥´v8gmxszt$vrsg
ebTt$vb$dveyfg±acrsrLdt$eyg-b$aeyfg-iOh6gqombAz`xu¥rutA²
xszgmeygqomeb$d]xs]omddgmzeyrs¤¢v8gmxsz©wgqdacbAd¥TgmO{veJdgqrue
tAdgzbAe ¤$gmetNt$xsrst$vrsg<
kzeyfg]¶deomt$g<{meyfg]Ih¢¡ªv²µ¤eygm¥Õt$oqeytArurs¤JbAdÑ
tAËt$z§xuz¶zxseyg vÊ8gmd]omt$©t$vrsgb$atAvb$dvxuz-tArurtAeytoqb$¥T²
xsz"acdbA¥´eyfgTeydt$o~Ñxsz`gqeygqomeybAdgmeygqomeb$d-gmzªt$et
eb0efg³jh¢¡Ét$e¢tªdtAeyg³ fxuo~f>xu§gmtArJeb0eyfg³z¥vwgqd
bAa-i`tAeeyfgqxud`xu©wbAtArIeyxs¥Tgm`efgX-iÔdtAeygÃy|)
0ƤegmÇ$£yj°b$dxszet$zoqg<{wxsz0eyfgoqt$g¢b$aËefg õlpgq²
egmoqeyb$d{qt$etIt$dg®gmzetAet-dtAeyg®bAa|8 XƤeygqÇAN{mxuzoqg
õ±l«ftA¢|8-iN
t$vrsgË}I¥T¥§tAdxsgmLeyfg®dgqrueb$a<eyfg®eydxuA$gqdVb$e©e
bAvgmd$gm³dxuz§efxsIxs¥¢rutAeyxsb$z
iTdt$eggm©8gmzj©wbAzeyfgdt$egbAaefgiTedxs$Agmdxuz²
©ey-
tAvrsg¢|$£y{Òõ]ÇA°X©db$eygqomexubAz{tAzTeyfg v¤et$ey®b$a
efgTgmegmoqeyb$d
fg§fxuAfªz¥vwgqd±b$a®Xxszvxst$±gmAgmzey±xs
efgdgqrsebAaeyfgfxs$fdtAeyg]bAaXxsz<vxutAijeydxs$$gqdxsz©eN
fgmg0xuzvxst$®gq$gqz<eËacgmgq§xszeybefg ¶ztAr-xs¥¢b$zTgmAgmze
dt$eg<kzgqgm{A fxsrug
õltAz
PI6tAdgIv¤T xseyf³omgmz²
edtArJtAz>0xuzvxst$TgmAgmzey{@xu¥b$zÍgmAgmzey§omtAz>eyxsrurv8g
tAomoqgm©egmXv¤b$efgmdgmegmoqeyb$d õl {t$z PI¸t$dg¢zbAe
dgmxsdgmSacbAd eyfgxs¥¢bAz"oqrutA£y
kzeyfxuxs¥¢rst$exubAz{mi|@bAey©eybAzrs¤-et$Ñ$gËxszeybItAomoqb$ze
õJÇ$°)©dbAeygmoqeyxsb$z§it$zYi|dt$egmt$dgTxs¥Txurst$dxszomgTxse
ft$`v8gmgqz)t$¥§gq·eyftAeSxsgmrsgmoqeydb$z·gmAgmzey³t$dg3xugqzeyxs²
¶gmt$e i8Okz3©dt$oqeyxsomg±eyfxsIxszacb$d¥Tt$exubAz³xsItNt$xsrutAvrsgtAe
i|$ fg¶zt$rËi}"dt$eygq-tAdg§zbAe-tAÊwgqomeygqª¥o~f0v¤Xefxs
xs¥§©ruxs¶omtAeyxsb$z
kz
t$vrsgÃ}8{i}&dt$eygqXacb$dª-xs¥¢b$zÎt$zÎ-xsgmrsgmoqeydb$z
gq$gqz<e`t$©©wgqt$d`fxs$fgmd`eft$z&i|"dtAeygm&h-St«dgmrse`b$a
dgm²µomrst$xu¶oqt$exubAz{wbA¥§gTbAa]eyfg§oqb$¥vxuzgmgm$gqzey{DxuzYefg
db ÜöXxsoqÝbAa
t$vrsg}8{vwgqomb$¥Tgxu¥b$zbAd -xsgmrsgmoqeydb$z
gq$gqz<eN
ka g`ombA¥§©t$dgeyfg³omb$rs¥TzÃbAai}Xb$ey©ebAveytAxuzgm
xseyfYefg`gm¨©8gmoqeygmYi}"dt$egmacbAdhjikmlOn{DAxuAgmzv<¤ tA²
vrug-8{$JgIzb$eyxsomg-eyftAe]xu¥b$zSgm$gqzey]tAdg Agmd¤gmrsr8dgq©²
dgmgmzegmkexuxs¥§©8b$deytAzeJebzbAeyxsomg±eyft$eeyfg±gmAgmzedtAeyg
tAeVi xsz©eacb$d-xs¥¢bAzxuÿ$È ¬j-Äomb$¥vxszgm xseyfbAeyfgqd
gq$gqz<eN£
fgmdgmacb$dg<{ xseyfo~f0t$zXxsz©e±dt$eg<{xuexu±xs¥T²
©8b$xuvrsgªÄgSeb0õJÇ$°Õ©dbAeygqomeyxsb$zO£eyftAe¢g`b$veyt$xszÃefg
gq¨©wgqomeygqdtAeyg±b$aÿ$ȧ¬jtAe i}Tb$ey©eN
t$vrug±}8ÌOnJ$gqz<eOPItAeygmj xuef"°wrsrV-i«Æt$z xuef
X¯k X§j X¯f X¯k° X§j8° X±f°
Q~²`LLa8[ g4³ g4´ h8´ j8µi° j8µi° j8µk°
RT¶]·¸v _8² h8f8i hj8g q8k8f ´µ]g8° ´µh° ³µ³°
RT¶]~[]~¹`b4_8² j4k8´ j4k8t j4t8i j8µ´° j8µ]g8° fµt°
S ¶]²ºxy¶]a8 h8i8h hj4q ij4t ´µ]g8° ´µh° hµf°
S ¶]4¹ j4t8q j4t8f fµt° fµi°
uwvyxyz{`b_8`ba8[ j4i8³j f8iµk°
|%`L}y~L j4³8³g i8iµk°
^_8`La8[ q8k8i8´ j4k8k°
tAvrugDÌn]¨©wgqomegm@PIt$egm tAei}
Q S s RTS R\UWV%X ^_8`ba8[
X¯f f8k f8k q8h8k f8k8k ´8³8kln
fg§xs¥¢rutAeyxsb$zXtA¥Tgm-gmt$o~f0gmegmomeb$dgmeyfg§acrsr
iÔvtAz xseyf
fgqdgqacb$dg<{]eyfg0b$vet$xszgm&dt$egm`tAdg
efg
¨
ñ8»
ï¨ ê ¨
dt$eygqËeyftAeËJg oqt$z§gm¨©8gmome]acdbA¥Ïeyfgjgm¨©wgq²
dxsgmzoqg<{AxuaJg-ombAzxsgqdJefg±xuz©egm$gqze]dt$eygqJbAa
t$vrsgT|A{
tAz§eyfgo~fbAgqzgmegmoqeyb$d@t$zIh¢¡Yv²µ¤eygq¥Î©t$dt$¥T²
gqeygqd
¬ º ¼`¾»IÁ®VÀIÙ¾-»
fg±zgq¨<eeygm©"xsdgmrst$egm³eyb§eyfg±gmeytAvrsxuf¥Tgmzeb$aVefg
gq$gqz<e§dt$eygqT xuefÍdgmeydxuoqeygqÃvt$z xueyfðedgb$dÑ
xsrsracb<oq@b$z¥§bAdgJgmet$xsrugqgqNt$rst$exubAzb$aefgIh¢¡Y©8gmd²
acbAd¥TtAzomgqN{wo~fgqo~Ñ<xsz³b$a®ÑAgm¤3©tAdtA¥§gqeygqd{tAz0efg§gmNt$rs²
t$eyxsb$zbAaxsÊwgqdgqze t$do~fxuegmoqeydt$rDo~fbAxuoqgm
Y÷½³ú:cmyú¾ ±¿¾±À ¾LWÁ
fgTIh¢¡Ïv²[¤egm¥ gqoqdxsvwgq0xszªgmomexubAzªkkykm8ftA
v8gmgqz acrsrs¤p©8gmomxs¶gq) xuef)°bAdgqxs$feN fg0xu¥rutAeyxsb$z
bAa³efxsÃ¥Tb<gmr` xsrurS©dbxsgpeyfg&gq$gmzeYdt$eygq«acb$d«efg
1 3 9 î1 ïì î43
·vtAz xseyf
fgª©dgmoqxug0gqet$vrsxsf¥Tgqz<e"b$a
efgmg§dtAeygm-xu±oqddgmzeru¤"zgqd±JbAdÑV kz0t$xseyxsb$zO{efxs
xs¥¢rst$exuz3 xsrurt$rsrub eybAgmdxuac¤³eyftAeIeyfg¢Ih¢¡)xsjtAvrsgeyb
eytAxuzTeyfgI¥Tt$¨xu¥¥ÔeybAdtA$gvtAz xseyfbAaw©ebS|$}$È
ƤeygqÇAN
÷³ ³ú:8ñ<Òþ ±jú:
et$eyxseyxsomIbAz³efg±vÊ8gmd bomoq©t$zom¤`acbAdefg$xs$gqzS©tA²
dt$¥Tgqeygmd§omt$zÍvwgbAveytAxuzgq°bAdTxuzeytAzomg{@g³tArudgmtA¤
zb$eyxsomgeyft$e:{: xseyfeyfgJ$xs$gqz©t$dt$¥Tgqeygmd{ õ±l"t$z Pj
gmeygqomeb$djacdgmgmzeru¤"ft$gtArurvÊ8gmd-acrur fxsjfb$ru
v8g¥Tb$dg±t$omoqdt$eygqru¤Agmdxu¶gm
÷ < ÁÄmyúWAú"0ûcyú:jLWùú:
kzeyfg®omddgmzeL¥Tb<gmr{mefg®i} eydxuA$gmdLbAeyoqb$¥TgËdgmt$o~fgm
efggmegmoqeyb$d@t$e #}ÒDke@fb$ruvwgxsz<egmdgmeyxszeyb
gmg{qxuagmzxuzIeyfgJi}-b$eomb$¥Tg®tAbb$zt$xuexuOtNt$xsrutAvrsg<{
o~ft$zAgm xuAzxu¶omt$zeru¤efg-xs¥¢b$zdtAeyg
fgJomddgqzeVt$rs$bAdxseyf¥Õacb$deyfg±Tl"o~fb$xsomg®et$Ñ$gqxszeyb
tAomoqb$zeËeyfgIeydxuA$gqdOz¥vwgqdN{Òve®zb$e®efgItNt$xsrutAvxsruxse¤b$a
efgÃTlO fxs§tAruAb$dxuef¥¦xuTomddgmzeyrs¤gq>acbAdefg
jh¢¡)v²µ¤eygq¥ xsz"h-ikmlOn±Ð&xuef3o~f"tAzt$rs$b$dxseyf¥X{
xse¥Tt¤XftA©©8gmzYeyftAeilOtAdgTvrsbo~Ñ$gmO{DJtAxuexuz3acb$dt
©8gmomxs¶oÍl {] fxuo~f&xs`v¤{ fxursgXefgmdgXxsSt$zb$eyfgmd
l6oqb$¥T©rsgmeygqru¤YacdgmgXh¯¥Tb$dg`xuzegmdgmeyxsz0tAruAb$dxuef¥
b$ru«v8g`eyb0eyt$ÑAgxuzeb3t$omoqb$zeefg`tNt$xsrutAvxsruxse¤0bAaJefg
xsrurzb¢{:gJft$g]acboqgq¢bAz¢eyfgaczomexubAzt$rsxue¤bAaefg
xuÊ8gmdgmzejv²µ¤<eygq¥TIb$aËefg¢h-ikmlOn jh¢¡ tAzXedxs$Agmd
¤egm¥T
fg¥Tbgmr xursrv8ggqzdxso~fgq³ xseyf3t¥Tb$dggq²
et$xsrugq`©wgqomxs¶omtAeyxsb$zSbAaLbA¥Tgjgm¨xsexuz¢Ih¢¡poqb$¥T©wbAzgmze
o~f"t$eyfghjikmlOn·gmegmomeb$d t$et§ixuzѪc-i£Ob$d efg
jh¢¡&b$acet$dg-acdt$¥Tgmb$dÑ0cjh
n£y
«Ø®çØ]½ Ø®»IÁØ®Ù
Þs|~ß±°wb$dgmxuAf<e²[¤<eygq¥TN{wxszo<s{Dhjexuz{ mÈ D)%DàÈ#8
. ð 13 í
9 ï¤É$î Ê 9 3
1Ë96¥Jê
ï 3
@feye©ÌÇ$Ç$ ¢zeyfgmztDoqb$¥X
Þ}$ß`äÍÌjxsrsrutArubAvwbA ÆtAxursruxsg<{ JbAvwbtD{ tAz
õ]ÌËt$zgÎÌ-¤<dg< -tAeythjomxsxuexubAz{ÔlObAz<edbAr
tAz dxuA$gqdNÌ lObA¥§¥TbAz¡Pjgm©8b$deIacb$dIefg©dgm©t$dt$eyxsb$z
bAaËeyfghjikmlOn
gqo~fzxsomt$r-gqxs$zPIgm©8b$deykzeygqdztAr
Ï
b$eygSIh¢¡{LlO{
dxuA$gqdN{VhjikmlOnJÇ#$²µ}$8{]lOnP
Ï {
|)###D