Management of access restriction within a system on chip

A method for access management of a system-on-chip having comprising a plurality of items of master equipment and a plurality of items of slave equipment, the method comprising:

• transmitting a first transaction from a first item of master equipment of the plurality of items of master equipment to a first item of slave equipment of the plurality of items of slave equipment via an interconnect circuit, wherein each respective item of slave equipment of the plurality of items of slave equipment has an associated identifier capable of taking on first and second values corresponding respectively to first and second properties of the respective item of slave equipment, wherein the plurality of items of slave equipment comprises a first programming interface associated with the first item of master equipment, wherein the first programming interface has an associated first identifier, and wherein the first item of slave equipment has an associated second identifier;
• automatically inheriting, by the first item of master equipment, a property of the first programming interface, the property of the first programing interface corresponding to the first identifier;
• assigning a first attribute to the first transaction, wherein the first attribute is capable of taking on first and second attribute values corresponding to first and second states of the first item of master equipment;
• granting to the first attribute a first attribute value based on a value of the first identifier;
• comparing the first attribute value with a value of the second identifier to produce a first comparison result;
• and
• rejecting or allowing the first transaction based on the first comparison result.

A microcontroller comprising:

• a plurality of items of master equipment comprising a first item of master equipment;
• a plurality of items of slave equipment comprising a first item of slave equipment and a first programming interface associated with the first item of master equipment, wherein each respective item of slave equipment of the plurality of items of slave equipment has an associated identifier capable of taking on first and second values corresponding respectively to first and second properties of the respective item of slave equipment, wherein the first programming interface is configured to have an associated first identifier, and wherein the first item of slave equipment is configured to have an associated second identifier;
• an interconnect circuit, wherein the first item of master equipment is configured to transmit a first transaction to the first item of slave equipment via the interconnect circuit, wherein the first transaction is configured to have an assigned attribute capable of taking on first and second attribute values corresponding to first and second states of the first item of master equipment, wherein the first item of master equipment automatically inherits a property of the first programming interface, the property of the first programming interface corresponding to the first identifier, and wherein the first item of master equipment is configured to grant to the attribute assigned to the first transaction a first attribute value based on a value of the first identifier;
• and
• a filtering circuit configured to, in the presence of the first transaction, compare the first attribute value with the value of the second identifier to produce a first comparison result, and reject or allow the first transaction according to the first comparison result.