ANSI INCITS 80 : 1988

1 Scope
2 Definitions
3 Functional signals
3.1 Head current switch/active read filter
3.2 Drive select (four signal lines)
3.3 Direction select
3.4 Step
3.5 Composite write data
3.6 Write gate
3.7 Index
3.8 Sector
3.9 Drive ready
3.10 Cylinder 0
3.11 Write protected
3.12 Composite read data
3.13 Side one select
3.14 In-use control
3.15 Head load
3.16 Drive busy
3.17 Two-sided
3.18 Disk change
3.19 Separated read data
3.20 Separated read clock
3.21 Not assigned
3.22 Motor on
3.23 Index/sector
3.24 Not assigned
4 Timing
4.1 Power sequencing
4.2 Drive selection
4.3 Read/write data timing
5 Electrical requirements for signal interface
5.1 Multidrop bus
5.2 Voltage levels
5.3 Termination
5.4 Signal drivers
5.5 Signal receivers
6 Mechanical description
6.1 Connectors
6.2 Interconnecting cable characteristics
Figures
1 200-mm (8-inch) cartridge drive signals
2 130-mm (5.25-inch) cartridge drive signals
3 Track access timing, 200-mm (8-inch)
4 Read initiate timing, 200-mm (8-inch)
5 Read data timing, 200-mm (8-inch)
6 Write initiate timing, 200-mm (8-inch)
7 Write data timing, 200-mm (8-inch)
8 General control and data timing requirements,
      200-mm (8-inch)
9 Track access timing, 130-mm (5.25-inch)
10 Read initiate timing, 130-mm (5.25-inch)
11 Read data timing, 130-mm (5.25-inch)
12 Write initiate timing, 130-mm (5.25-inch)
13 Write data timing, 130-mm (5.25-inch)
14 General control and data timing requirements
      130-mm (5.25-inch)
15 Interface interconnect circuit scheme
16 Resistive termination networks
17 Signal interface, edge connector on 200-mm
      (8-inch) drive
18 Signal interface, edge connector on 130-mm
      (5.25-inch) drive
19 Signal interface cable connector for 200-mm
      (8-inch) drive
20 Signal interface cable connector for 130-mm
      (5.25-inch) drive