关键词: ADC控制器, 轮询, 多触发源, 后处理

Abstract: An analog-to-digital converter (ADC) controller architecture with multi-trigger sources is designed. The design has 16 start-of-conversion (SOC) configuration modules supporting up to 34 different trigger sources or trigger methods for synchronous or asynchronous triggering. The signals of the 16 SOC configuration modules can be arbitrated using three polling methods. The ADC analogue core can be controlled for accuracy selection, sampling mode configuration, input channel selection, etc., so as to achieve multiple quantization accuracies. ADC quantization results are post-processed, and ADC quantization accuracies are further improved to meet more system requirements.

Key words: ADC controller, polling, multi-trigger sources, post-processing