HP 9000 Series 310 Service Information Manual page 62

Device Microprocessor
Tasks performed by the device microprocessor include maintaining the interface, data sending
and receiving tasks. It also converts device information to data for the device microprocessor to
send to the computer as human input information.
Device-Specific Components
Various components are used depending on the device. Digitizers, keyboards, knobs, and a host
of other hUlllan input functions are converted to data for the device microprocessor. Each device
will have its own specific components, depending on the input task details.
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Functional Description