Each block of the dsPIC33EP256GM306: what it is, the registers that control it and the pins it uses.
CPU core (W registers, DSP, program space)
I/O port A
I/O port B
I/O port C
I/O port D
I/O port E
I/O port F
I/O port G
SPI 1
SPI 2
SPI 3
Analog-to-digital converter 1
Analog-to-digital converter 2
Comparators and voltage reference
Comparator 1
Comparator 2
Comparator 3
Comparator 4
Comparator 5
CRC and memory scanner
CTMU
Data converter interface (codec)
Debug and test
DMA
DMA 0
DMA 1
DMA 2
DMA 3
I²C 1
I²C 2
Input capture 1
Input capture 2
Input capture 3
Input capture 4
Input capture 5
Input capture 6
Input capture 7
Input capture 8
Interrupts
Main–secondary core interface
Data EEPROM and flash program memory
Output compare 1
Output compare 2
Output compare 3
Output compare 4
Output compare 5
Output compare 6
Output compare 7
Output compare 8
Oscillator, power control and watchdog
Peripheral module disable
Parallel master port
I/O port control
Peripheral pin select
Peripheral trigger generator
PWM generators
Quadrature encoder interface 1
Quadrature encoder interface 2
Reset control
Real-time clock and calendar
Other special function registers
Timer1
Timer2
Timer3
Timer4
Timer5
Timer6
Timer7
Timer8
Timer9
UART 1
UART 2
UART 3
UART 4
BETA