R01UH0822EJ0100 Rev.1.00
Page 311 of 1041
Jul 31, 2019
RX13T Group
18. Multi-Function Pin Controller (MPC)
18.2.2
P1n Pin Function Control Register (P1nPFS) (n = 0, 1)
The Pmn pin function control register (PmnPFS) selects the pin function.
Bits PSEL[4:0] select the peripheral function assigned to each port pin.
The ISEL bit is set when a pin is used as an IRQ input pin. This setting can be used with the combination of the
peripheral function, though IRQn (external pin interrupt) of the same number should not be enabled by two or more pins.
The ISEL bit to which IRQn is not specified is reserved.
—: Do not specify this value.
Address(es): P10PFS 0008 C148h, P11PFS 0008 C149h
b7
b6
b5
b4
b3
b2
b1
b0
ASEL
ISEL
—
PSEL[4:0]
Value after reset:
0
0
0
0
0
0
0
0
Bit
Symbol
Bit Name
Description
R/W
b4 to b0
Pin Function Select
These bits select the peripheral function. For individual pin functions,
see Table 18.2.
R/W
b5
—
Reserved
This bit is read as 0. The write value should be 0.
R/W
b6
Interrupt Input Function Select
0: Not used as IRQn input pin
1: Used as IRQn input pin
P10: IRQ0 (48-pin)
P11: IRQ1 (48-/32-pin)
R/W
b7
Analog Input Function Select
0: Used other than as analog pin
1: Used as analog pin
P11: CVREFC0 (48-/32-pin)
R/W
Table 18.2
Register Settings for Input/Output Pin Function in 48-/32-pin
PSEL[4:0] Settings
Register/Pin
P10PFS
P11PFS
P10
P11
00000b (Initial value)
Hi-Z
00001b
—
MTIOC3A
00010b
MTCLKB
MTCLKA
00111b
—
POE8#