30 Description TP9100 Service Manual
© Tait Electronics Limited May 2005
2.4 Hardware and Software Architecture
Overview This section describes the hardware and software modules of the radio and
their interaction in the functioning of the radio.
2.4.1 Hardware Architecture
The electrical hardware of the radio is implemented on the main board and
the front-panel interface board.
For a detailed description and block diagrams of individual circuits, refer to
“Circuit Descriptions” on page 49.
Main Board The main board inside the radio body includes the following circuitry:
■ transmitter
■ receiver
■ frequency synthesizer
■ digital board with a RISC processor and custom logic (implemented on
an FPGA), memory, and a DSP
■ CODEC and audio
■ interface
■ power supply
For a basic block diagram of the hardware architecture, refer to Figure 2.4
on page 31.
For a more detailed block diagram of the transceiver, refer to Figure 2.6 on
page 35 (analog mode) and Figure 2.7 on page 36 (digital mode).
Front-Panel
Interface Board
The front-panel interface board includes the circuitry needed for the
controls and indicators on the front panel and the man-down function.
For a block diagram of the front-panel interface board, refer to Figure 3.9
on page 73.
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