Datasheet

dsPIC33FJ16(GP/MC)101/102 AND dsPIC33FJ32(GP/MC)101/102/104
DS70000652F-page 144  2011-2014 Microchip Technology Inc.
10.4.2.2 Output Mapping
In contrast to the inputs, the outputs of the Peripheral
Pin Select options are mapped on the basis of the pin.
In this case, a control register associated with a
particular pin dictates the peripheral output to be
mapped. The RPORx registers are used to control out-
put mapping. Like the RPINRx registers, each register
contains sets of 5-bit fields, with each set associated
with one RPn pin (see Register 10-11 through
Register 10-23). The value of the bit field corresponds
to one of the peripherals and that peripheral’s output is
mapped to the pin (see Table 10-2 and Figure 10-3).
The list of peripherals for output mapping also includes
a null value of ‘00000’ because of the mapping
technique. This permits any given pin to remain
unconnected from the output of any of the pin
selectable peripherals.
FIGURE 10-3: MULTIPLEXING OF
REMAPPABLE OUTPUT
FOR RPn
TABLE 10-2: OUTPUT SELECTION FOR REMAPPABLE PIN (RPn)
0
3
RPnR<4:0>
Default
U1TX Output Enable
U1RTS Output Enable
4
19
OC2 Output Enable
0
3
Default
U1TX Output
U1RTS Output
4
19
OC2 Output
Output Enable
Output Data
RPn
Function RPnR<4:0> Output Name
NULL 00000 RPn tied to Default Port Pin
C1OUT 00001 RPn tied to Comparator 1 Output
C2OUT 00010 RPn tied to Comparator 2 Output
U1TX 00011 RPn tied to UART1 Transmit
U1RTS
00100 RPn tied to UART1 Ready-to-Send
SCK1 01000 RPn tied to SPI Clock
(1)
SDO1 00111 RPn tied to SPI Data Output
(1)
SS1 01001 RPn tied to SPI1 Slave Select Output
(1)
OC1 10010 RPn tied to Output Compare 1
OC2 10011 RPn tied to Output Compare 2
CTPLS 11101 RPn tied to CTMU Pulse Output
C3OUT 11110 RPn tied to Comparator 3 Output
Note 1: This function is available in dsPIC33FJ32(GP/MC)10X devices only.