ELITE SERIES USER MANUAL | SPECIFICATIONS |
completely disables the write logic and enables the read data logic and stepper logic.
6.4.2. Data Signals
Read Data
This interface line returns to the controller card the magnetic polarity of the section of the diskette (side) which is currently passing under the (selected) read/write head. When a section of media with a particular magnetic polarity is passing under the (selected) read/write head, this interface line will be a logical low. When a section of the media with an opposite polarity is passing under the (selected) read/write head, this line will be a logical high. The controller cards are not as interested in the actual logical level of this line as they are in a change from one level to the other. Such a transition signifies that a “1” bit was recorded at that media location, lack of a transition indicates a “0” bit.
Write Data
This interface line directly controls the current flowing through the (selected) read/write head. A logical high level on this line will cause the (selected) read/write head to magnet—
Page