Tally T6090 Maintenace Manual - page 179
3
T6065 Maintenance Manual Supplement
Controller
Hardware Architecture
The T6065 implements a highly integrated multi-processor electronic design. This design is
implemented in two basic modules. These are:
Engine Control Module
Personality Module
The purpose of separating the controller into these two modules is to allow for the easy replace-
ment, retrofit, or conversion of Personality Modules which define the host interface, emulations,
and memory capacity.
The Personality Module is easily accessed from the rear of the printer and can be removed or
installed without tools. All host interface connectors are contained on the Personality Module.
An Engine Control Module is unique to a particular printer model, typically defined by print speed
or other mechanically dependent characteristics. Future printer models will incorporate this
modular scheme with Personality Module software capable of run-time adaption to all models of
Engine Control Modules.
Engine Control Module
The primary components of the Engine Control Module are the Control Processor (an Intel
8xC196KB microcontroller), the Shuttle Processor (a Phillips/Signetics 8xC750 microcontroller),
Hammer Driver ASICs, hammer drive transistors, motor drive chips, and EEPROM, and various
discrete components.
The Engine Control Module contains all of the circuitry and intelligence needed to:
Communicate with the Personality Module
Control the firing of the print elements
Control and monitor the speed of the shuttle mechanism
Control and monitor paper motion
Control and monitor ribbon motion
Monitor the paper out sensor
Monitor the temperature sensor
Interface to the control panel
Save engine calibrations and printer configuration settings in an EEPROM
The Engine Control Modules differ between the T6090 and the T6065 in that they each have
unique Control Processors and Shuttle Processors.