Microchip Technology MA330019-2 Data Sheet

© 2007-2012 Microchip Technology Inc.

DS70292G-page 163

11.6.2.2

Output Mapping

In contrast to 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 output mapping.
Like the RPINRx registers, each register contains sets
of 5-bit fields, with each set associated with one RPn
pin (see 

 through 

). The

value of the bit field corresponds to one of the
peripherals, and that peripheral’s output is mapped to
the pin (see 

 and 

). 

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. 

0

21

3

RPnR<4:0>

default

U1TX Output enable

U1RTS Output enable 4

OC4 Output

0

21

3

default

U1TX Output

U1RTS Output 4

OC4 Output

Output Enable

Output Data

RPn

NULL

00000

RPn tied to default port pin

C1OUT

00001

RPn tied to Comparator1 Output

C2OUT

00010

RPn tied to Comparator2 Output

U1TX

00011

RPn tied to UART1 Transmit

U1RTS

00100

RPn tied to UART1 Ready To Send

U2TX

00101

RPn tied to UART2 Transmit

U2RTS

00110

RPn tied to UART2 Ready To Send

SDO1

00111

RPn tied to SPI1 Data Output

SCK1

01000

RPn tied to SPI1 Clock Output

SS1

01001

RPn tied to SPI1 Slave Select Output

SDO2

01010

RPn tied to SPI2 Data Output

SCK2

01011

RPn tied to SPI2 Clock Output

SS2

01100

RPn tied to SPI2 Slave Select Output

CSDO

01101

RPn tied to DCI Serial Data Output

CSCK

01110

RPn tied to DCI Serial Clock Output

COFS

01111

RPn tied to DCI Frame Sync Output

C1TX

10000

RPn tied to ECAN1 Transmit

OC1

10010

RPn tied to Output Compare 1

OC2

10011

RPn tied to Output Compare 2

OC3

10100

RPn tied to Output Compare 3

OC4

10101

RPn tied to Output Compare 4