Datasheet

PIC24FJ128GC010 FAMILY
DS30009312B-page 194  2012-2013 Microchip Technology Inc.
11.4.3.2 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.
Each register contains two 6-bit fields, with each field
being associated with one RPn pin (see Register 11-27
through Register 11-42). The value of the bit field
corresponds to one of the peripherals and that
peripheral’s output is mapped to the pin (see
Table 11-4).
Because of the mapping technique, the list of peripher-
als for output mapping also includes a null value of
‘000000’. This permits any given pin to remain discon-
nected from the output of any of the pin-selectable
peripherals.
TABLE 11-4: SELECTABLE OUTPUT SOURCES (MAPS FUNCTION TO OUTPUT)
Output Function Number
(1)
Function Output Name
0 NULL
(2)
Null
1 C1OUT Comparator 1 Output
2 C2OUT Comparator 2 Output
3 U1TX UART1 Transmit
4U1RTS
(3)
UART1 Request-to-Send
5 U2TX UART2 Transmit
6U2RTS
(3)
UART2 Request-to-Send
7 SDO1 SPI1 Data Output
8 SCK1OUT SPI1 Clock Output
9 SS1OUT SPI1 Slave Select Output
10 SDO2 SPI2 Data Output
11 SCK2OUT SPI2 Clock Output
12 SS2OUT SPI2 Slave Select Output
18 OC1 Output Compare 1
19 OC2 Output Compare 2
20 OC3 Output Compare 3
21 OC4 Output Compare 4
22 OC5 Output Compare 5
23 OC6 Output Compare 6
24 OC7 Output Compare 7
25 OC8 Output Compare 8
28 U3TX UART3 Transmit
29 U3RTS
(3)
UART3 Request-to-Send
30 U4TX UART4 Transmit
31 U4RTS
(3)
UART4 Request-to-Send
35 OC9 Output Compare 9
36 C3OUT Comparator 3 Output
37 MDOUT DSM Modulator Output
38-63 (unused) NC
Note 1: Setting the RPORx register with the listed value assigns that output function to the associated RPn pin.
2: The NULL function is assigned to all RPn outputs at device Reset and disables the RPn output function.
3: IrDA
®
BCLKx functionality uses this output.