You may find kind of detailed information from the module datasheet - http://www.cypress.com/file/223701/download the processor used in this module is a PSoC4 BLE device, 256k Flash, 32k SRAM, for the component resource available in this module, Creator is a good place(when selecting device for a Creator project, the available resource are listed) to refer to. On the 2nd page of the module device datasheet, PSoC4 BLE device TRM(Tech Reference Manual) link and datasheet link(it is broken currently, we will fix it, find it from http://www.cypress.com/products/psoc-4-ble-bluetooth-smart directly) are mentioned, PWM blocks and other component details can be found in the TRM, actually there are two TRMs, one if Architecture, the other is Register.
As a general hint: You do not need a register map of your PSoC device, all this is handled by the generated component interface from Creator IDE. You can be sure that the code is pretty tight and (nearky) error-free. Every PSoC component is documented and has got a handfull of (also documented) APIs. Using this components ensures compatibility between different chip versions and even maked a PSoC family change easier. If this is not enough you may create your own components using macros, schematics and even HDL (Harware Descrirption Language)