Sharp MZ-3500 - Manual (Page 63)

o Block number allocation
The program and data areas are located after Track 2
1 block = 2K bytes (8 sector)
MZ3500
(Double side) (Single sided)
track
Block No
Front Reverse
2 BO B1 B2 B3
3 B4 B5 B6 B7
I
38 B144 B145 B146 B147
39 B148 B149 B150 B151
( 2 K X
152 = 304K )
Each track is blocked in the following manner:
1 sector 2 sector
3 4
5 6
;
■ 1 block j
(
13
(
14
15 sector 16 sector
1 block
o Track 1, Sector 1 information (CP/M)
0 5
track
Block No
Front
2 BO B1
3 B2 B3
38 B72 B73
39 B74 B75
( 2 K X
76=152K )
10
15
AA TRACK SIDE SECTOR N
SECTO
R NUM
------1 ---------
1
1
----------- 1 ----
1
1
BER
1
______1_____
1
______1—
DATAT
iANSFl
ER NU
MBERlI
TRACK SIDE SECTOR N
Drive unit
specification
Represents the
system media [•---------------------
Load address Start address
BOOT
20 50 51
SECTO
RNUM TRACK SIDE SECTOR N
SECTO
R NUM
TRACK SIDE SECTOR N
BER BER
SECTO]
R NLISA
BER I (
SUB-IOCS
Indicates
the eiKi
Single density (front, Track 0)
1 Double density (other than front. Track 0)
SIDE
0 Side 0 (front)
1 Side 1 (reverse)
Nos of data transfers = INT [IOCS capacity/1 K] + 1
• Sub IOCS can be divided into either blocks If divided to
less than eight blocks, the block that follows
68