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4.4.8 OBJECT POSITION command
The following table shows the normal sequence of the OBJECT POSITION command when used with this
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Table 4-20
Step Bus phase Initiator operation
←←→→
Target operation
I BUS FREE Verifies bus free
2 ARBITRATION Obtains bus-usage
right
3 SELECTION Selects target →
Drives BSY signal
4 MESSAGE OUT Selects logical unit →
5 COMMAND
Specifies OBJECT POSITION (CDB)
→
Loads/unloads paper (ADF)
6 STATUS ← Reports GOOD status
7 MESSAGE IN ← Reports message (Command Complete)
Release BSY signal
8 BUS FREE