29.6.2.3 Firmware in SRAM Code Area

The firmware contains all PTC subsystem functionalities, allowing PTC measurement in the different conditions of parameters and configurations. The firmware is a binary file copied to the SRAM code area at the address defined by the memory map. The firmware makes the pPP work properly with some peripherals like the timer, a clock generator and obviously the PTC digital controller and the PTC analog front end. The firmware embeds all QTML (QTouch Modular Library) functionalities. Those modules are not modifiable by the application developer. The QTML functionalities configuration and data are controllable by the mailbox. The host has read and write accesses to the mailbox.