| 摘要 |
A digital communication system includes a digital controller (11), a master circuit (14) capable of communicating in a variety of serial protocols, and at least one slave circuit (16). The digital controller is preferably a microprocessor. The master circuit is configured in a selected serial protocol (e.g. three-wire or two-wire) by the digital controller in response to 8-bit data words provided by the digital controller. The slave circuit is connected to the master circuit and communicates in the master circuit's selected serial protocol under the control of data words sent from the digital controller to the master circuit. The master circuit (14) is a bi-directional, parallel-to-serial and serial-to-parallel interface circuit having three programmable channels (CHANNEL 0, 1, 2), Fig. 2 (not shown). <IMAGE>
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