5-1
Section
Controller Operating States
62
5-1
Controller Operating States
Host
device
Communications
Commands
Responses
Controller
Antenna
Tag
Communications between
Antenna and Tags
(1)
(3)
(2)
The Controller can be in two operating states, ready (ready to receive a com-
mand) or processing (processing a command).
Ready to Receive Command
In this state, the Controller has no command in process and the Controller is
ready to receive any command other than a subcommand. When a command is
received, the Controller starts processing the command.
Processing Command
After a command is received by the Controller, the Controller ignores the next
command until the Controller processes the command and returns a response.
The Controller, however, accepts the STOP or RESET command anytime.
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