Computer Organization Part 34 : PCI and SCSI Buses Department … · 2014. 6. 7. · Dal Allan...
Transcript of Computer Organization Part 34 : PCI and SCSI Buses Department … · 2014. 6. 7. · Dal Allan...
![Page 1: Computer Organization Part 34 : PCI and SCSI Buses Department … · 2014. 6. 7. · Dal Allan pronounced the new acronym as "scuzzy" and that stuck. SCSI Interface. SCSI Interface](https://reader035.fdocuments.net/reader035/viewer/2022071408/60ffeaed4fbd1541760e4a76/html5/thumbnails/1.jpg)
Uni
vers
ity o
f Pun
e S.
E. I.
T.
Subj
ect c
ode:
214
442
Part
34
: PCI
and
SCS
I Bus
es
Com
pute
r Org
aniz
atio
n
UN
IT
V
Tush
ar B
. Kut
e,
Dep
artm
ent o
f Inf
orm
atio
n Te
chno
logy
, Sa
ndip
Inst
itute
of T
echn
olog
y &
Res
earc
h Ce
ntre
, Nas
hik.
ht
tp:/
/tus
hark
ute.
com
Stan
dard
I/O
Inte
rfac
es
![Page 2: Computer Organization Part 34 : PCI and SCSI Buses Department … · 2014. 6. 7. · Dal Allan pronounced the new acronym as "scuzzy" and that stuck. SCSI Interface. SCSI Interface](https://reader035.fdocuments.net/reader035/viewer/2022071408/60ffeaed4fbd1541760e4a76/html5/thumbnails/2.jpg)
Trad
ition
al (I
SA) (
with
cac
he)
High
Per
form
ance
Bus
![Page 3: Computer Organization Part 34 : PCI and SCSI Buses Department … · 2014. 6. 7. · Dal Allan pronounced the new acronym as "scuzzy" and that stuck. SCSI Interface. SCSI Interface](https://reader035.fdocuments.net/reader035/viewer/2022071408/60ffeaed4fbd1541760e4a76/html5/thumbnails/3.jpg)
PCI B
us
Perip
hera
l Com
pone
nt In
terc
onne
ct
In e
arly
199
2, th
e In
tel f
orm
ed a
n an
othe
r in
dust
rial g
roup
in re
latio
n to
the
PC b
us. T
he
mai
n ob
ject
ive
behi
nd th
e fo
rmat
ion
of th
e gr
oup
was
to o
verc
ome
the
wea
knes
s in
ISA
and
EISA
bu
ses.
Th
ey d
esig
ned
the
PCI s
peci
ficat
ions
in Ju
ne 1
992
and
upda
ted
in A
pril
1993
.
Feat
ures
Re
quire
s ver
y fe
w c
hips
to im
plem
ent.
Use
s the
syst
em b
us to
incr
ease
the
bus c
lock
spee
d.
Abili
ty to
func
tion
with
64-
bit d
ata
bus.
Hi
gh b
andw
idth
, 33
MHz
. Su
ppor
t of s
ingl
e an
d m
ultip
roce
ssor
syst
ems.
O
pera
te co
ncur
rent
ly w
ith th
e pr
oces
sor b
us.
Func
tion
as m
ezza
nine
or p
erip
hera
l bus
. Sy
nchr
onou
s tim
ings
. Be
tter
syst
em p
erfo
rman
ce fo
r hig
h sp
eed
I/O
subs
yste
ms
such
as A
GP,
NIC
, disk
cont
rolle
rs.
Plug
and
Pla
y.
![Page 4: Computer Organization Part 34 : PCI and SCSI Buses Department … · 2014. 6. 7. · Dal Allan pronounced the new acronym as "scuzzy" and that stuck. SCSI Interface. SCSI Interface](https://reader035.fdocuments.net/reader035/viewer/2022071408/60ffeaed4fbd1541760e4a76/html5/thumbnails/4.jpg)
PCI i
n sin
gle
proc
esso
r sys
tem
PCI i
n m
ulti
proc
esso
r sys
tem
![Page 5: Computer Organization Part 34 : PCI and SCSI Buses Department … · 2014. 6. 7. · Dal Allan pronounced the new acronym as "scuzzy" and that stuck. SCSI Interface. SCSI Interface](https://reader035.fdocuments.net/reader035/viewer/2022071408/60ffeaed4fbd1541760e4a76/html5/thumbnails/5.jpg)
PCI C
onne
ctor
PCI B
us L
ines
(req
uire
d)
Syst
ems l
ines
In
clud
ing
cloc
k an
d re
set
Addr
ess &
Dat
a 32
tim
e m
ux li
nes f
or a
ddre
ss/d
ata
Inte
rrup
t & v
alid
ate
lines
Inte
rfac
e Co
ntro
l Ar
bitr
atio
n N
ot sh
ared
Di
rect
conn
ectio
n to
PCI
bus
arb
iter
Erro
r lin
es
![Page 6: Computer Organization Part 34 : PCI and SCSI Buses Department … · 2014. 6. 7. · Dal Allan pronounced the new acronym as "scuzzy" and that stuck. SCSI Interface. SCSI Interface](https://reader035.fdocuments.net/reader035/viewer/2022071408/60ffeaed4fbd1541760e4a76/html5/thumbnails/6.jpg)
PCI B
us L
ines
(Opt
iona
l)
Inte
rrup
t lin
es
Not
shar
ed
Cach
e su
ppor
t 64
-bit
Bus E
xten
sion
Addi
tiona
l 32
lines
Ti
me
mul
tiple
xed
2 lin
es to
ena
ble
devi
ces t
o ag
ree
to u
se 6
4-bi
t tra
nsfe
r
JTAG
/Bou
ndar
y Sc
an
For t
estin
g pr
oced
ures
PCI C
omm
ands
Tran
sact
ion
betw
een
initi
ator
(mas
ter)
and
ta
rget
M
aste
r cla
ims b
us
Dete
rmin
e ty
pe o
f tra
nsac
tion
e.g.
I/O
read
/writ
e
Addr
ess p
hase
O
ne o
r mor
e da
ta p
hase
s
![Page 7: Computer Organization Part 34 : PCI and SCSI Buses Department … · 2014. 6. 7. · Dal Allan pronounced the new acronym as "scuzzy" and that stuck. SCSI Interface. SCSI Interface](https://reader035.fdocuments.net/reader035/viewer/2022071408/60ffeaed4fbd1541760e4a76/html5/thumbnails/7.jpg)
PCI R
ead
Tim
ing
Diag
ram
PCI B
us A
rbite
r
![Page 8: Computer Organization Part 34 : PCI and SCSI Buses Department … · 2014. 6. 7. · Dal Allan pronounced the new acronym as "scuzzy" and that stuck. SCSI Interface. SCSI Interface](https://reader035.fdocuments.net/reader035/viewer/2022071408/60ffeaed4fbd1541760e4a76/html5/thumbnails/8.jpg)
PCI B
us A
rbitr
atio
n
SCSI
Smal
l Com
pute
r Sys
tem
Inte
rfac
e, o
r SCS
I (p
rono
unce
d sc
uzzy
), is
a se
t of s
tand
ards
for
phys
ical
ly co
nnec
ting
and
tran
sfer
ring
data
bet
wee
n co
mpu
ters
and
per
iphe
ral d
evic
es.
The
SCSI
stan
dard
s def
ine
com
man
ds, p
roto
cols,
and
el
ectr
ical
and
opt
ical
inte
rfac
es.
SCSI
is m
ost c
omm
only
use
d fo
r har
d di
sks a
nd ta
pe
driv
es, b
ut it
can
con
nect
a w
ide
rang
e of
oth
er
devi
ces,
incl
udin
g sc
anne
rs a
nd C
D dr
ives
.
![Page 9: Computer Organization Part 34 : PCI and SCSI Buses Department … · 2014. 6. 7. · Dal Allan pronounced the new acronym as "scuzzy" and that stuck. SCSI Interface. SCSI Interface](https://reader035.fdocuments.net/reader035/viewer/2022071408/60ffeaed4fbd1541760e4a76/html5/thumbnails/9.jpg)
![Page 10: Computer Organization Part 34 : PCI and SCSI Buses Department … · 2014. 6. 7. · Dal Allan pronounced the new acronym as "scuzzy" and that stuck. SCSI Interface. SCSI Interface](https://reader035.fdocuments.net/reader035/viewer/2022071408/60ffeaed4fbd1541760e4a76/html5/thumbnails/10.jpg)
Back
grou
nd
SCSI
was
der
ived
from
"SAS
I", t
he "S
huga
rt
Asso
ciat
es S
yste
m In
terf
ace"
, dev
elop
ed c
. 197
8 an
d pu
blic
ly d
isclo
sed
in 1
981.
[2] A
SAS
I con
trol
ler
prov
ided
a b
ridge
bet
wee
n a
hard
disk
driv
e's l
ow-
leve
l int
erfa
ce a
nd a
hos
t com
pute
r, w
hich
nee
ded
to
read
blo
cks o
f dat
a.
Larr
y Bo
uche
r is c
onsid
ered
to b
e th
e "f
athe
r" o
f SAS
I an
d SC
SI d
ue to
his
pion
eerin
g w
ork
first
at S
huga
rt
Asso
ciat
es a
nd th
en a
t Ada
ptec
. Dal
Alla
n pr
onou
nced
the
new
acr
onym
as "
scuz
zy" a
nd th
at
stuc
k.
SCSI
Inte
rfac
e
![Page 11: Computer Organization Part 34 : PCI and SCSI Buses Department … · 2014. 6. 7. · Dal Allan pronounced the new acronym as "scuzzy" and that stuck. SCSI Interface. SCSI Interface](https://reader035.fdocuments.net/reader035/viewer/2022071408/60ffeaed4fbd1541760e4a76/html5/thumbnails/11.jpg)
SCSI
Inte
rfac
e
SCSI
Con
trol
ler
![Page 12: Computer Organization Part 34 : PCI and SCSI Buses Department … · 2014. 6. 7. · Dal Allan pronounced the new acronym as "scuzzy" and that stuck. SCSI Interface. SCSI Interface](https://reader035.fdocuments.net/reader035/viewer/2022071408/60ffeaed4fbd1541760e4a76/html5/thumbnails/12.jpg)
SCSI
-1
This
was
evo
lved
from
SAS
I in
1979
. it w
as
appr
oved
by
ANSI
in 1
986
as X
3.13
1-19
86.
SCSI
def
ines
the
basis
for f
irst S
CSI b
uses
in
clud
ing
cabl
e le
ngth
, sig
nalin
g fe
atur
es,
com
man
d an
d tr
ansf
er m
odes
. It
uses
onl
y a
8-bi
t bus
, with
5 M
B/s d
ata
tran
sfer
rate
.
SCSI
-2
The
exte
nsio
n of
orig
inal
SCS
I app
rove
d by
AN
SI in
19
94 a
nd re
leas
ed a
s X3.
131-
1994
. Fa
st S
CSI,
10 M
Hz, 1
0 M
B/s,
8bi
t reg
ular
SCS
I. W
ide
SCSI
, 16/
32 b
its.
Mor
e de
vice
s per
bus
: 16
Impr
oved
cabl
e an
d co
nnec
tors
(50
in S
CSI-1
) Ac
tive
term
inat
ion.
Di
ffere
ntia
l Sig
nalin
g, to
allo
w lo
ng c
able
leng
ths.
Co
mm
and
Que
uing
: allo
w m
ultip
le re
ques
ts o
n th
e bu
s Ad
ditio
nal C
omm
and
Set:
for C
DRO
Ms,
Sca
nner
![Page 13: Computer Organization Part 34 : PCI and SCSI Buses Department … · 2014. 6. 7. · Dal Allan pronounced the new acronym as "scuzzy" and that stuck. SCSI Interface. SCSI Interface](https://reader035.fdocuments.net/reader035/viewer/2022071408/60ffeaed4fbd1541760e4a76/html5/thumbnails/13.jpg)
SCSI
-3
Devi
sed
in 1
993.
Kn
own
as S
CSI-3
par
alle
l int
erfa
ce S
PI.
It de
fines
mec
hani
cal,
elec
tric
al p
roto
col l
ayer
s of t
he
inte
rfac
e.
Data
tran
sfer
rate
: 8-b
its a
t 20
MB/
s ove
r 50
pin
conn
ecto
r. 16
-bits
at 4
0 M
B/s o
ver 6
8 pi
n co
nnec
tor.
Th
e ca
pabi
litie
s of I
EEE-
1394
and
Fib
er C
hann
el w
ere
incl
uded
.
SCSI
Spe
eds
![Page 14: Computer Organization Part 34 : PCI and SCSI Buses Department … · 2014. 6. 7. · Dal Allan pronounced the new acronym as "scuzzy" and that stuck. SCSI Interface. SCSI Interface](https://reader035.fdocuments.net/reader035/viewer/2022071408/60ffeaed4fbd1541760e4a76/html5/thumbnails/14.jpg)
SCSI
Bus
term
inat
ion
Pass
ive
Term
inat
ion
Activ
e Te
rmin
atio
n Fo
rced
Per
fect
Term
inat
ion
High
Vol
tage
Diff
eren
tial
Low
Vol
tage
Diff
eren
tial
Data
tran
sfer
on
SCSI
bus
Initi
ator
Ta
rget
![Page 15: Computer Organization Part 34 : PCI and SCSI Buses Department … · 2014. 6. 7. · Dal Allan pronounced the new acronym as "scuzzy" and that stuck. SCSI Interface. SCSI Interface](https://reader035.fdocuments.net/reader035/viewer/2022071408/60ffeaed4fbd1541760e4a76/html5/thumbnails/15.jpg)
SCSI
Bus
Sig
nals
Refe
renc
es
Web
sites
: ht
tp:/
/en.
wik
iped
ia.o
rg
Com
pute
r Arc
hite
ctur
e an
d O
rgan
izatio
n
By A
. P. G
odse
(fro
m b
ooks
.goo
gle.
com
)
Com
pute
r Org
aniza
tion
By
Ham
ache
r and
Zak
y