Epson LX-86TM Especificações descarregar pdf (Página 41)

REV.-A

2.4 CONTROL CIRCUIT

This section describes the software operation, specifications, and circuit operation of the control circuit

(ROCX

board). This section consists of the following descriptions:

1. Function of the CPU which controls the overall operation and its peripheral circuits (Section 2.4.1)

2. Gate array function (Section 2.4.2)

3. Outline of the overall firmware operation (Section 2.4.3)

4. Software control and circuit operation of the analog circuits (Sections 2.4.4 through 2.4.8)

The control circuit is very simple, and consists mainly of four chips: the CPU, gate array, ROM, and RAM.

(Refer to Figure 2-1 1.) The main operation of the control circuit is to control the CPU and the gate array.

Other components are described in each section that describes the functions of the CPU and gate array.

Figure 2-11 shows a block diagram of the control circuit.

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Epson LX-86TM Especificações Página 41