Cn Count Field - Honeywell 6000 Series Reference Manual

ADDRESS MARK 3 ISY'I'liS WITHOUT ANY FLUX CHANGES
S'I'AR'I'S ALL (IOUN'I' FIELDS.
ADDRESS MARKS ARE USEDTO FIND START OF A
SPLICE
COUNT FIELD WITHOUT WAITING FOR INDEx
AREA
SAME AS GAP 2
SEE FIGURE Z-IOC I
' . —[l'l.() SYNC AREA
GAP4 '
GAP BEFORE
»
SAME: AS GAP 2
COUNT FIELDS
'
SEE FIGURE 2-IOC
lC4 — C36 J
A
DEVICE ,, : , ADDRESS . . ' , . '
NUMBER
@3113)? MARK
9 BV'I'IIS ZI-ZRU
"I" '
"Halli". N0.
I BYTE (ID) ' 3 WITH (:AP "13" U . L
ALL ZEROS FROM END
SEE "CURE 24°C . OF LAST DATA FIELD
SEE FIGURE 2-IOC
TO INDEX
I l A
. I '—
' R 9
CAP 4 CN COUNT CAP 2 032L215: CM, 3 "'3". CAP 5 INDEX
') . . 3 p 2 y H .. I ' 3 .
31 BYTES 4 + _ CC BYTLS 28 BY MS "WES DATA FIELD 30 BYTLS POINT
' [I
9 I V
B v
RO FIELD (AND ALL O'I'HERS FOLLOWINC)
I. NORMAL CUSTOMER DATA FIELD
2. COUNT FIELD DEFINES TRACK ADDRESS AND SECTOR NUMBER
3. DATA FIELD CONTAINS CUSTOMER DATA
4. DATA FIELDS CAN BE REWRIT'I'EN WITHOUT CHANGING BALANCE OF TRACK
#\
' \
II I ' 2 3 4 5
I l
I
PHYSICAL . I . . . '
ADDRESS FLA(. RECORD (1. B'Yl ES
1 I
a K
{NUMBER OF THIS RECORD (0-39)
BITS 0-5 = UNUSED AND WRITTEN
AS ZEROS
BITS 6-7 = INDICATES CONDITION OF
TRACK H
00 = NORMAL TRACK
01 = ALTERNATE TRACK
10 = DEFECTIVE TRACK
II = DEFECTIVE TRACK _
Figure 2—10D. CN Count Field
2-10.4 ' DB3?