System on chip and microcontroller

The embodiment of the utility model relates to a system-on-chip and a microcontroller. A system includes a plurality of master device items, each master device item having a programming interface, anda plurality of slave device items. An interconnect circuit is coupled between the master device item and the slave device item. Each transaction is assigned an attribute capable of employing at leasttwo attribute values corresponding to at least two states for the primary device. Each slave item is associated with an identifier that can employ at least two values that respectively correspond toat least two characteristics for the slave. Each master device item automatically follows its programming interface's characteristics. The filtering circuit is configured to compare the correspondingattribute value with an identifier value of the slave device as intended in the presence of a transaction for the slave device, and reject or not reject the transaction based on the comparison. 本公开的实施例涉及片上系统和微控制器。一种系统，包括多个主设备项，以