Sharp MZ-3500 Service Manual page 63

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II1II
MZ3500
o Block number allocation
The program and data areas are located after Track 2
1 block
=
2K bytes (8 sector)
(Double side)
Block No
track
Front
2
BO
BI
B2
3
B4
B5
B6
r--
(
38
B144
B145
BI46
39
B148
B149
BI50
( 2 K x 152 = 304 K )
Each track
IS
blocked
In
the following manner:
1
sector
2 sector
3
4
5
6
Reverse
B3
B7
B147
BI51
(
1
block
(
1
block
0
13
14
15 sector
16 sector
Track 1, Sector 1 information (CP/M)
0
Drive unit
spec
If
Icat Ion
5
load address
(Single sided)
Block No
track
Front
2
BO
BI
3
B2
B3
(
38
B72
B73
39
B74
B75
( 2Kx 76= 152K )
10
15
Start address
Represents the
L
system media
~r---------
BOOT - - - - - - - - - - - -....
""1·>--------------
N=
o
SIDE
=
20
SUB-IOCS
Single density (front, Track
0)
Double density (other than front, Track
0)
o
Side 0 (front)
Side 1 (reverse)
Nos of data transfers
=
I NT [I OCS capacity 11 K J + 1
Sub IOCS can be divided Into either blocks
If
divided to
less than eight blocks, the block that follows
50
- 68-
51
Indicates
the
PM

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