Honeywell 6000 Series Reference Manual page 26

SAME AS GAP 2
L.
SEE FIGURE :!-IOCJ
GAP 4
GAP 8EFORE
COUNT FIEUlS
,C4 - C36 J
"
DEVICE
NUMBER
SPLICEL
AREAF
1 BYTE (Ill)
13 UYTES
ZEROS
[
ADURESS MARK 3 IWTES WITHOUT ANY FLUX CHAN(iES
STARTS AU. COUNT FIEUlS.
r--------
AnDRESS MARKS ARE USEIl TO FIND START OF A
COllNT
nEt.u
WITHOUT WAITIN(; fOR INIlEX
AUIlRl:SS
MARK
J IWTE (iAP
rf]JI.O SYNC AREA
r-E
SAME AS GAP 2
!
SEE FIGURE 2-IOC
,~
____
----~A~--------~,
RECORI) NO.
SYNC
SYNt.:
IIEXI'}
t,
IWTES ZERO
'~------~v~----------------------------------------------------------~'
/
-iEE FIGURE 2-IOC
~EE FIGURE 2-IOC
~
,
~,
... "
,.,
GAP2
RIDATA
R39
2HH + 7 ECC (;AP 3 LAST
2H BYTES
BYTES DATA FJELD
GAP 4 CN COUNT
31 BYTES 4
+
2 CC BYTES
" . J '
'----~I~·--------~v~--------------~/
"
1. NORMAL CUSTOMER IlATA fiELD
"
~ LL ZEROS FROM END
()F LAST DATA FIELD
TO INDEX
GAP 5
INDEX
30lWTES POINT
4
RO FIEI.D (ANI) ALl. OTHERS H)LLOWINCI
2. COUNT FIELIl DEFINES TRACK ADDRESS AND SECTOR NUMBER
,,---/'
() 2
i
PHYSICAL
ADDRESS
FLAG
I
~~
'DEFINES CONDITION'
OF TRACK
BITS 0-5
=
UNUSED AND WRITIEN
AS ZEROS
-
nITs 6-7
=
INDICATES CONDITION OF
TRACK
00
=
NORMAL TRACK
01= ALTERNATE TRACK
10
=
DEFELTIVE TRACK
11
=
DEFECTIVE TRACK _
~~
3. DATA flEU) CONTAINS CUSTOMER DATA
4. DATA FIELDS CAN .\E REWRITrEN WITHOUT CHANGING BALANCE OF TRACK
,
3 4 5
I
I
RECOIU)
CC IWTES
I
,
~~ ~~
2 8 YTES lJSEI> FOR ERROR DETECTION
L[NUMBER OF THIS RECORD (0-39)
Figure 2-10D. CN Count Field
2 -10.4
DB37