IBM System/360

7340 HYPERTAPE DRIVE
Commands
Command Format
Test I/O
*Write (Including Read
Checking)
*Read
*Read Backward
Sense
Control
No Operation (does not reset
Sense)
Set Density (Reset Sense bits)
Tape Positioning
Backspace
Backspace File
Space
Space File
**Rewind
Cartridge Operations
**Rewind and Change Cartridge
**Change Cartridge and Rewind
**Change Cartridge
**File Protect On
Tape Demarcation
Erase Long Gap
Write Tape Mark
0 0
0 0
0 0 1
0
0 0
0
0 0
0 0
0
0
*These commands carry density and diagnostic-mode information
coded in bits positions 0··5.
**Free-Running
M =Diagnostic Modifier
D ~Density Modifier (1 ~high or 3022 bpi density)
C =Control Operation Code
iJ =Ignored, may be 0 or 1
IBM CONFIDENTIAL S/360 105