dear friends , within a peripheral connection event, 9 states is identified, as it is shown in the pic above(from s132 document). Can i get a detailed description about what work is done during each state ? for example,a detailed description for stage A):at the beginning of a connection event, the device wakes up and prepares the functions related to BLE standard, which are used during the communication, such as the logical link control and adaptation protocol (L2CAP),generic access profiles (GAP), generic attribute profile (GATT), security manager (SM), etc. regards.