Type B timer is a 16-bit timer present in most devices of the dsPIC30F family of microcontrollers. It is denoted as the timer2 module and timer4 module like in dsPIC30F4013 microcontroller. Type B timer has the following specific features:
a type B timer can be concatenated with a type C timer to form a 32-bit timer,
the clock synchronization for a type B timer is performed after the prescaler.
Type B timer functional block diagram is shown in Fig. 4-6.
Fig. 4-6 Type B timer functional block diagram (timer2 module)