specifications for floppy disk drives

SPECIFICATIONS FOR FLOPPY DISK DRIVES SMD 100 Normal Power
EPSON
Technologie,die Zeichen setzt.
1
3 /2 " EPSON-Floppy­
Laufwerk
"SMD-110":
Preisvorteil: 60 % unter
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• Japanisches QuaUtätsprodukt
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kontaktierte Epoxy­
, I
•
SHUGART-Bus kompatibel über
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Jeden 5!14 "-ControHer zu Front mit LED. Betrieb
, .
betreiben an Apple mit Special­
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PAGE
1•
................................. . 5
Scope
2. General
~
.
5
General Specifications
6
Detailed Specifications
9
4-1
4-1-1
Electrical specificationsof input signals
4-1-2
Function of' input signals
Configuration 01 interface signals
( 1)
Drive select 0
(2)
Hotor on
(J)
Direction
(~ )
(5)
(6 )
(7 )
(8 )
4-1-4
4-1-5
4-1-6
4-1-7
J
..... ... ..
. .. . . .
· ...... · ...
..
9
9
9
..
..
·...... · .... ....
H'rite gate
....
. . . . . . . . . · ......
Write data . . . . . . . . . . . . ......
..........
Side select
...........
· . .. . . .. .
In use . . . . . . . · .........
............
Step
9
~
Option functions
10 10 10 10
10 11 11 11 Electrical specifications of the output signals Function of the output signals
(1)
Ready (2 )
Track
(J)
Index (4)
Read data (5 )
\lri
te
· . ..
12 12
12 00 13 ·...
13 enable
Timing
13 ................
Track seek timing
Head start timing
Read data timing
13 14 14 ........................
.........................
2
14 15 4-2
( II )
\-Iri te start timing. (5)
Write data timing
15 (6)
Control data
16
Power supply
15
....... timing .................
inter~ace
17
4-2-1
Power supply specifications
17
4-2-2
Connectors
17
~.
Power supply line
Signal lines
18
4-2-)
State of' wait
19
4-2-4
Connectors ..
19
Installation
4-3
5, 3.5 Flexible Disks
5-1 Appearance
5-2 Recomrnendable medium.
6.
19
20
20
20
Outline Dimension Drawing . • . . . . . . . . . . . . • . . . . . • . . . . . • • 21 7. Notes on Use oi' Drive
8.
17
24
7-1
Power su?ply
24
7-2
Interface
24
"7-)
Error rate
25
7-4
7-5
7-6
Caution
25
Installation of drive
25
Beat generation
25
Format
•••••••••••••••
8-1
IBM Track Format
8-2
ISO Disk Format
0
••••••••••••••••••••••••••••••
26
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
3
1. Seope
This speeifieation applies, to SMD-l00 series (normal power consumption type)
disk drives for 3.5" flexible dlsks.
2. General
SHD-l00 series (normal power eonsumption) drives are flexible disk drives
designed to be used as external memories for personal computers, word
processors, ete. The features of the SHD-100 series drives are described
be 10Yl •
(,) Low power consumption: SMD-l00 series drives operate on only 2. lW
(wait) and
5.2W (read/write) power.
(2) Memory medium used i8 3.5 11 flexible di.sk encased in a hard cartridge er
equivalent.
(3) The disks used have a storage capacity of 500K bytes per aide (equiva­
lent to a eonventional single-sided, double-density 5.25" floppy di sk).
( 4 ) Hi gh t r ac k den si ty (1 35 TP I)
(S tvt 0 -
1 4 0 .
1 3 0 )
(5) Use of oe brushless spindle drives assures long, trouble-free service
life.
(6) The head positioning meehanism employs a step
motor and a steel band
enabling fast (3msee) access between tracks. (S M 0 - 1 4 0 ,
1 3 0 )
(7) The interface employed is fully compatible with conventional disk qrives,
enabling easy replacement.
(8) The small aize and light weight (800g) of the SMD-l00 series drives make
thßm ideally suited to a wide variety of applications.
4
3. General Specifications
Model
Unformatted (Kbytes)
FM
Memory
Capacity
HFM
I Formatted (Kbytes)
I (16 sectors/tracksl
~'H 1
I HFM I
I FM
I HFHJ
Recording density (BPI)
Data transfer speed (Kbi1
1
/sec)
I
FM
I
I MFM I
Track density (TPI)
Average rotation wait time (rnsec)
Average
Settliinq time
He ad load
ti.me
Total Number of tracks
Inner track radius (mm)
Side 0
23.1875{
Side 0
23.375
38.00
39.50
38.00
Recording methods
FM/MFM
R/W head
TUnnel erase type
No. of heads
2
2
Head positioning method
Step motor
Type
Spindle motor
24. 8 '7 5
39.50
Side 1
40
80
24.6875
side 1
Outer track radius (mm)
80
160
Start-up time
Direct drive
(sec)
1 .0
1 .0
Rotation speed (rpm)
300
300
5
I SMD-140 I SMD-130 I SMD-120 I SMD~11 0 I
I Noncontact detection method
I
Model
Index detector
__
Detector I~Tr a_c_k__O_O__d_e_t_e_c_t_o_r____________~I~N_o_n__c_o_n__t_a_c__t __d__
e_t_e__
c_t_i__
o_n____
m e_t_h__o_d____~1
I Write enable detector
I Cartridge set detector
Environmental conditions I Temperature
(Operating)
1Humidity
I Contact
I Contact
I5
I 20
I
I
I
I
detection method
detection method
to 45°C
to 80% RH (non-condensinq)
I Hax. we t bUl~ 29°C
I temper a ture I
I Vibration
Environmental conditions
Te mpe ra ture
(s torage and transport)
Hurnidity
Shock
I 5 to 60Hz,
I SOG max.
Wait
I
I
R/W
1 3 0 0 mA
I
Motor start
85 0 mA ( max • )
wait
280 mA (TYP)
R/W
320 mA (TYP)
Vibration
Power supply
15 to 60Hz, O.6G max.
I - 2 0 t 0 65°C (- 4 0 t 0 6 5 ·C t r ans po r t )
I 95% RH max. (non-condensinq)
I
+12V (+5~)
+5V
(+5%)
)
420'mA (max.)
Power consumption
I
Wai t..
2. 1 w (TYP)
R/W
5. 2 H (TYP)
I
Outline dimensions
Weight
L
I Designed
I
I
" Width
101.6mm
Depth
147.5mw
Height
40mm
800g
orientations
Ins talla tion method
Four arienta tions • .( See page
19 )
Screw holds on the side and lower
I
I
panels of the disk drive are used.
l
Drawing. )
I Applicable
I
(See page 22
disks
I
Outline Dimension
3.5 11 flexible disk. (For details, see
page 20.)
I
6
I
I
1
3G max.
6 0 mA (TYP)
CTYP
I
I
I
Model
I Re liabi 1i ty I
I
I
I
I
I
SMD-140
I SMD-130 I SMD-120 I SMD-l10 I
10, 000 POH
MTBF
I~__________~______--------~
0.5h
f MTTR
I~
__________~______________~
I Designed
I~
I
I
I
I
I
5 years
________~______________~
I Sof tware
J~
service life
Less than 1 bi t per 10 9
error ra te
__________~______________~
Less than 1 bit per 10 '2
Hardware error rate
I~
__________~______________~
I
I
I
I Seek
I Disk
I
I
Less than 1 seek per 10 6 opera-
error rate
I
Connector
tions
3 x 10 6 passes/track
service life
Power supp1y
AMP 171822-4 or equivalent
Signals
JAE PS-34SEo-04P1-1C/Oor equiva1ent
Front panel material
ABS resin (Black) Safety standard
Conforms to UL standard. 7
4. Oetailed Specifications
4.1 Configuration of interface signals
Tha SMD-l00 series (low power consumption) flexible disk drives are
designed so that a maximum of 4 drives can be connected in a daisy chain
configuration. All signal input levels are
~TL
compatible.
The power supply and interface require +SV and +12 V power.
4.1.1
Electrical specifications of input signals
... Low" :; TRO E
VIN: OV to +O.4V
I IN:
"High"
FALSE
5mA
('l''iP)
VIN: +2.5V to +5.25V
IIN:
OmA (open)
+sv
1
~ lk{l
D~~----------~I~[~
1438 5. 6 KO
C-MOa
The terminating resistance array is set at the correct direction
(mark is inside) in the single line socket on the main unit: For the
daisy chain connection; resistance array can be only installed into
one of the (four) drives.
Tbe disk drive with the resistance array instal1ed must be charged
with current in order to operate any of the drives.
4.1.2 Function of input signals
(1) Drive select 0"
3 (080 ,...
OS)}
A ll\axilnum of four S1-10-100 sel."'ies
can be connected in a
(low power consumption) disk drives
daisy chain configuration. Selection of the drive
numbers is performed by SSl of the DIe connector on the main PCB. When
this switch is operated, only the signals from the selected drives will
be input.
At
the position MX, drive is
drive select sigIlai.
selected
8
no
matter
~hat
state of
(2) Motor ON (MON)
The spindle drive is operated when this signal is low. However, read and
write operations are only performed when the read (ROY) signal is low.
(If the dlsk cartridqe is not set in the drive, the spindle drive will
not operate.) The RDY signal goe5 low within one second after the MON
signal 15 input when a disk cartridge has been set.
(3) Direction (DRTN)
This signal determines the direction of the movement of the step motor
which controls the movement of the read/write heads. When this signal i9
low, the read/write head will move toward the . center of the disk and when
it 1s high, toward the edge of the dlsk.
(4) Step (STP)
The low pulse of this
s~gnal
causes the
·s t e p
motor to move in the
direction indicated by the DRTN signal. The response step cycle (Ts min.)
15 3ms/track for models 140/130 and 6ms/track for models 120/110. When
the write gate signal 1s low, step 1s internally inhibited.
Wben the s'eek direction i5 reversed, the reverse step pulse must be sent
after the last pulse (Ts min + 6ettlinq :tlwe).
A: Jms(mil)
B ""6ms(mn)
I
m.dmn\
1 3 0 )
A. (5) Wri te
ga te
B
(SMD-120,
1 1 0 )
fWTG)
This signal selects between read and write data. When th1s signal 1s low, write data 1s enabled and when high, read data 1s enabled. Write operations to a cartridge to which a write enable cover has not be~o
affixed are internally inhibited by the disk drive. After the WTO signal goes high, there is a 1.3ms eraae timing. Fo'r this reason the
see~
or read operation will not begin immediately. (6) Write data (WTO)
This signal transanits the write data that is beiog written to the disk.
The fall of th1s signal from high to low causes the ~rite current flowing
through the read/write head to reverse polarity. '!his signa"l is operable
only when the write gate signal is low.
9
FM recordin9
-"+--r" O. 2511&(mh)
2. IlIs( max)
(7) Side select (SSL)
This signal selects whether the upper or lower read/write head will be
used. (upper head) 11
HIGH" 1: Side 0 (lower head)
NOTE; This signal is used only ~ith models SMD-l'O/SMD-120.
(8) In use (IUL)
This signal is used to turn the LED on the front panel of the disk drive
on and of f. When this signal 1s low, the LED turns on and when i t i5
high,
the LED turns of f •
This LED is controlled by the drive select signal as the factory-set
condi tion.
"4.1.4 Option functians
By operating the switches on the PeB of the SMD-l00 series disk.drive it is
possible to select the signal that will contral the illumination of the LED
on the front panel of the drive.
10 (1) When pin No. 1 (lU) is shorted The tED 1s controlled by the in use signal (pin No. J2-4). (2) When pin No. 2 (10) is shorted The LED i5 controlled by the drive select signal. (l) When pin No. 3 are sharted.
The LED illuminates only when the in use signal,the drive select
si,nal and motor on signal are all active. (10 1s shorted as the factory-set condition.) 4.1.5 Electrical specifications of the output signals
SN7438(TI) or equivalent 1s used as the output drive for SHD-l00 series
disk drives.
SN " 414
or .qulvalenl
HOlt
Iv,tem
"J
'(7
':"
-;;:
SMO-l00 leri8, dl.k drIve
dlsk drive
"Low" ;:; TRUE
"High" ::; FALSE
VIN~
+0 to +O.4V
I IN:
4 Qn 1\ (M AX)
VIN: +2.5 to +5.25V
I IN: OmA (open)
4.1.6
Funct10n of the output signals.
( 1) Ready (RDY)
This signal goes low to indicate that the disk cartridge has been
correctly set in the drive and 15 rotating normally. In the SMD-l00, a
detector is provided to detect the presence of the disk cart ridge and to
control the ready signal.
11 (2) Track 00 (TKOO)
This signal goe.s low when the read/wri te head is in the outermost posi­
tion on the disk.
(3) Index (IDX)
One low pulse of thls signal is genera ted fQr each rotation of the disk.
The trailing edge of this pulse shows the beginning of the track.
ZOOms (nom)
0.5,....,Gms
(4) Read data (ROD)
ROD outputs the bit stream of read data fram the read circuit. This
signal i3 normally high and goes low in response to a change in the
polarity of tqe data on the disk.
4.us (0001) Bjls(nom)
--t---.. . r-1.us ± O. 35.us
(5) Write enable (WE)
This signal goes low and i3 sent to the host computer when a disk
cartridge with a
wri~e
enable
notch is set in the disk drive.
12 4 • 1 • 7 Ti mi n 9
(1)
Track seek timinq
WRITE GATE
DRIVE SELECT
OIRECTlON
1- 'Jls (min)
... 1
IJls (mn)
, JA:S (m ,l u)
A
l.usernn)
,ß
~:
18m'(mlll)
(Pl 1 Il)
21m I
......-
......--41 I "'. (m I Il)
STEP
I ps( mh)
• 1
I ..
--.J--t--' ms( mtl)
A :
l.9PlI(mll1
3 m I (ill
I D)
B : 6ms(mln)
(2)
A
(SMD-140.
1 3 0 )
B
(SMD-l 20,
1 1 0 )
Read start timing
DRIVE SELECTi
STEP
~'Jls(min)
WRITE GATE
l}Js( mill)
VALID
AEAD DATA
1j.1S (m in)
--I~ A
B
18m. (1ll1 A)
21
I:q,
(m
1 ', ami (m l A)
1 n)
I}J S ( IIIr1 )
13
A
(SMD-140,
3 0 )
B
(SMD-l 20,
o)
(3)
Read da ta
timing
For FM
ß,us(nom)
.f}As(nom) ...--~
l,us±O.35}AS
For MFM
-+-~I,us±O.JS,us
4,us(nom) r---......-t
6}As(nom)
8,us(nom)
(4) Write start timing
DRIVE SELf.CT
STEP
_
~--ro_ A : 1 8 ms
(m
B : 2 1 inS CD,
'I)
I )
WAlTE GATE
l}Js
(mln)
WAlTE OATA
_ o f -........-
(5) write data timing
8}lS(max) I}lS (roo)
A:
tSMD-l 4 O.
1 3 0 )
B :
(SMD-l 2 O.
1 0 )
For FM
8}1s:t 40n5
For MFM
4J,lS
± 20ns .---~
6J,ls ± JOns
14 O.25,us(mw-.)
--+--+-0 Z.I}l$( mal)
8J,lS ± .eOns
(6) Con trol da ta timi ng
When the disk cartridge has been set and the initial track position 1s
00.
-11
1\
POWEA ON
MOTOR ON
DRIVE SELECT
t\---------­
Il'o(m•• ) READY
., .0500 ,
(max)
VALID
TRACK 00
~
)
200ms(nom)
VALID
INDEX
Ic lsec(max)
DIAECTION
I
~I~s(min)~
---i-I­
-+---~I\l ~r---r-
I
STEP
•
i2'
11'
~
I
WRITE GATE
n
11'(m
)
V
--
.
'-" s( m1n)
"'
A: 2ms(max)
.1.,,",, \
~ 8:
5ms(max)
~ t;:: ::::y
J
Bj4s(mu)
l~s(mil)
WRITE OATA
SIDE SELECT
IOO}J$(mln)
SMD·140/120 on1v
U1;L
1. ~ m. (m l a)
---~
• I ~_
1
)1­
1
VALIO
READ DATA
I
A
(SMD -
l 4 O.
B
(SMD-l 2 O.
3 0 )
Ijls(mln) 1 1 0 )
15 i
~."
(mi
!!Ul
4.2 Power supply interface
4.2.1 Power supply specifications (main PCB connector Jl)
Voltage
Ripple voltage
+12V±5~
250 mV p-p max.
5V±57.
100 mV p-p max.
+
NOTE: Power supply voltage is that at power supply connector Jl of the main
PCB.
4.2.2 Connectors
SMO-l00 series (normal power conswnption) disk drives are connected the host
~ystem
using two different connectors. Power is supplied by apower line connected to connectors Pl and Jl. Signal communication is performed by connectors Pl and J2. <Power supply line>
SMD·100 5erles (normal power
comumption) di5k drive
Host sYiicem
JI
+ 12\1 "nl'I<fn
+ 12'1
O. 01 u
1.7
16 <Signal lines)
SMO·l00 '8,iel (normal 'power
consumplion' disk drive'
H<lst. 'Y118m
IM
L
LI
( IUU
USE
4
3
DRIVE SELECT 3 (OS 3 )
6
5
(IDX)
INDEX
8
1
OAiVE SELECT 0 (050 )
10
9
DRIVE SELECT 1 (OS I )
12
II
DRIVE SELEOT 2 (OS 2 )
14
13
(MON)
MOTOR ON
16
15
(DRTN)
DIREOTION
18
11
(STP)
STEP
20
19
(WTD)
WAlTE OATA
22
21
(WTG)
WRITE GATE
24
23
(TK 00 )
TRACK 00
26
25
WRITE PAOTEOT
(WPT)
28
27
(ROD)
REAO DATA
*
JO
29
( SSL)
SIOE SELECT
J2
JI
(ADY)
READY
)4
33
*
SMO-140/120only
17 1-
4.2.3
of ~ait
SED-lOO series (nornal power consumpution) is switched to power-save
Stat~
mode(state of wai t) by Moter-ON si gnal (J2).
4.2. 4 Connectors
For connectors, we recommend the following:
RECEPTACLE
AMP
171822-4
CONTACT PIH
AHP
170262-1
PS-34SEO-D4 Pl-1C
(Closed ti pe)
PS-34SEO-D4PI-ID
(Oaisy ti pe)
Power supply connector Pl.
Signal connector P2
4.3
InstaUa tion
Horizontal installation
(the peB eide must be up)
lllclinod
Button-side
down installation
Inatallatlon
(0""30°)
18 Button.:.side
up installation
5. 3.5 11 Flexible Disks
5.1
Appea.ra.nce
3.3(.129)
Auto
.,
Ihuttor
~'
~
----0-
..-
.
t-"
.. ..
,
,,
I
..
\\
I
\
I
I
I
\
,,,
"
......-._-- ..
...............
,,
;;
/
90(3.54)
Top
5·2
l
vlew
"
I
I
\
Met.a)
~
1
hub
\
\
\
,,
...
Side
Vlew
med um .
.Rec·om·mend·a·ble
S 0 N Y - - - - - 0 M- 0 4 4 4 0 (ci
b 1e-
5 . 2 •1
"",10
,
/
(
:, 94 (3.10)
are& \\
0
0/';1]-----.. .
\,
.1
L ab e 1
l-
'\
0 U
s
OM-D3440 (single-s
19 d e d)
d e d)
... '....
....
_----_ ... "
'"
.,
Bottom vlew
Wr 1 t D
onablo
h0 , 0
6.outline oLnension urawing
r---------------~--------------
If
1"'------3§T
~
I
fFill~~I-~lf
~ i[
1
I-------.--l@
I
-4-.---+1­
/
-E9-
I
i
2-N~- 3Z/JNC
d1,;
-
I
I
er--'­
-$­
Z - t'D
DE;rn;..6
)
1
-1---------:- - - ­
lOS
.~· o.Z
( 4. / 3" )
[
\
­
1
[l
20
'""'
N~
...:~
""0
~__- - - -____- -____________________L_Jv
CS9 on r.,b~-O)
ZP
01
2'O~ 'Pb­
l
~.",
.-.,
--.
c::c ....
:-eu
~-
:--­
"J
"
U.!
+
~
'-'
-e­
~ ', i~
~IQ
...;J
0.
~
UJ
,...
\.J't
~
a
........ N
'--
t)
h~
N
r:\
-W
9-H.Ld20
n.l-p 'U)
-------~-
NnZE-'1~-p
9-f{.l'i3o
I
o
t
J./-l "W
?NnZ'i-~N-Z
o
(" /.,5-/ )
7.
Notes on Use of Drivos
7-1
Powor supply
7-1-1 Two power sources of' 12V and SV are required.
'fhe sequence, however, is not specified.
7-1-2 The rise timo of power supply affects the power on
or reset operation of the internal circuit.
Tharafore,
tha 90% rise time of' thc SV power souree must ba
100015 or less.
The diskette is protected at power on and power
of'f'. but the write gate signal should not be
allowed to beeome active.
7-1-3 When the motor on signal becomas semi-aetive,
the standby mode is switched on and the operation
of' the R/W circuit is stopped.
7-1-4 With a nonnal type, the power supply capaeity "bocomes
maximum at the spindie motor start with 12V system and
at the maximum write action with the SV system.
7-2
Interf'ace
7-2-1 The signal system is interchangeable with the
conventional 5.25 11 system.
'rhe canne c tor. hO\-Jever. i 5 in compl iance in
des i gn l.J i t h S ONY I 5 J. 5" d r i v e •
7-2-2 Daisy chain
Up to .tour daisy chain connection is possible.
The terminating resistancc array is set :for all the
drivos at the shipment .from tho factary.
Hemove
all the arrays on tho samo cablo except f'ar the one
on tho end drive.
Seleetion for each drivo, which is dane by
a short plug. should be mado caref'ully without
repetition.
22 7-2-3 Specification change
The lighting condition of the IN USE LED can be changed
by means of a short plug.
Use it in a desired setting
position.
7-3
Error ratt;
The error rateof the specifications is the value with the
:f a u 1 t 1 e s s dis le e t t e . Well chosen diskettes must be subjected to the error rate test. 7 -4
Cauti.on
Tha drive design has taken into consideration the external
noise oi' CHT, etc.
Bowever, do not use it too close to
the CRT \~ithout perfect shielding; otherwise, the Read/
Write capability of' the drive will be
doteriorated.
7-5
Installation of' drive
7-5-1 Install the drive securely, usine the four screw
holes (M3, PO.5, 6 DEEP) on the drive side or the
four screw holes (M3, ~O.5. 6 DEEP) on the drive
bottom.
7-5-2 Sincc the tolüranc e of the intervals of the instal­
lation screw holes i5 ~O.2mm, ample care must bo
exercised in ensurine the positional accuracy and
bore accuracy.
7-6
Heat generation
Relative positions must be designed with such care that
th~ ambient temperature of the drive hecomes
the operating
temperature of the specifications.
The upper limit tem­
perature must be strictly observed particularly about the
diskette.
23
8. Format
The rEH f'ormat or the ISO f'ormat is rccommended.
8-1
IBM Track Forma t
...
~
Oetce ted
n
rL
Last Sector
'I
)
CH'
1
01 Sector
1--10
IC~1l4
C~p
0
-1 1­
F;eld
Gap S,oc
SyoC
AMI
Sector 02­
10 CRC
I
oala
AM2
SIOC
CIP
-i
Oata Field
CRC Gap Syoc
1
2
10
lode.
Hark
Uall
or
Oeleled
Oah
Addrt,>s
Mark
Har~
128
r-­
Byte
(Dccimal) 40
6
I
26
1
6
2
4
11
2~b
1
b
27
"2
r-512
Single
Density
I
C;P
)
/1-&1
rack
16
44
'12
73
9
SB
37
5
FF
Fr
f-
Oata
~omaI,
Ff
00
FC'
FF
00
1
50
12
fC
'l
I
4
'1
FW
FF
00
22
12
or
(Oala,
FH'
' J
256
Double
Densrty
J
12
J
2
3
I'
)12
r--
2
1024
Data
[H~rm.,,)
•
54
152
16
84
182
9
116
94
5
4E
4E
I­
Byte
80
(Decimal)
00 C2' FC 'IE
4E
00 AI' FE
,)
'2
fß
4E
AI
00
or
(Oal.)
,)
fB
ThlS data byte rncludes mlsslng clock .
• -2 10 "eid
.) CRC chech. byte
ISO Disk Format
8-2
Index
~L--_-------------------------------41r----f11------ - - - - - - ­
t - - - I D Freld
~p 31
l
I
Srngle
Oensity
DO'lble
Deusity
r--­
Gal) 4
GalJ I
._ ­
16
FF
~...-c_
I\d(IIUS~
­
- 6 - f - -.1
00
lByte(O«:"~
12
12
p-tuJltolDt<<fUI
4E
00
t-
enc
IJ2"
-:~
, 1-~ill~
1'
Sy,',c
- - - - - I-~~
19y1riOt.:lIllil)
Sector 1
-­
--
Fe;
C 11 R N
'
-
Oala Field
- -Gao 2
SYIlC;
0.\"' "
tA.. ,~
-4~ r-::-'
f-
2
I-t
1I
n
00---4-f2~
AI' FE~-7- ' '\
4t.:
(,
I
00
B'~ I"
elle
Data
iIT2
Oala
'\
Data
.\
-
---;-r-
Sector 2­
Gap
J
S),ne
6
2
J!
12
I
~ll·J:~
00
I~
4E
12
00
II
2
Seelor
:d-~
~,'b('0
<?o
.,.
c/'<>
• 1 : This data byte IOcludes
misSlng elock .
~ß"
Density
• '2 : lOaddress
• ):CRC : X'~+xlJ +X' +-1
I
Dovl.lle
OClIS,ly.
121:l
l{j
1R8
1"16 J)I
si"2 -16 603­
?~6-
27
42
58
101
130
16
9
~ --5­
256- I)""? 372 - - I~
266
16
84 f - ­ 296
~2 --rr- (i58 . ­
Y
7i6_
!~2..!. ---R. 120?
~ .,.--L
r -'
G..p
Oala
J
24 Gap
<I
Seclor
Track
11
Fr
Preamble
"'", 1I
11
Gao "4
FF
4E