MC56F81663 datasheet(20/73 Pages) NXP

20 / 73 page

Table 2. Signal descriptions (continued)

Signal Name

LQFP

LQFP/

QFN

State

During

Reset

Type

Signal Description

GPIOC2

Input

Input/

Output

GPIO Port C2 — After reset, the default state is

GPIOC2.

(TXD0)

Output

SCI0 transmit data output or transmit/receive in single

wire operation.

(XB_OUT11)

Output

Crossbar module output 11.

(XB_IN2)

Input

Crossbar module input 2.

(CLKO0)

Output

Buffered clock output 0.

NOTE: The clock source is selected by

SIM_CLKOUT[CLKOSEL0] bits in SIM.

GPIOC3

Input

Input/

Output

GPIO Port C3 — After reset, the default state is

GPIOC3.

(TA0)

Input/

Output

Quad timer channel 0 input/output.

(CMPA_O)

Output

Analog comparator A output.

(RXD0)

Input

SCI0 receive data input.

(CLKIN1)

Input

External clock input 1 to OCCS.

NOTE: If this pin is selected as device's external clock

input, then both SIM_GPSCL[C3] bits in SIM

and OSCTL1[EXT_SEL] bit in OCCS must be

set.

GPIOC4

Input

Input/

Output

GPIO Port C4 — After reset, the default state is

GPIOC4.

(TA1)

Input/

Output

Quad timer channel 1 input/output.

(CMPB_O)

Output

Analog comparator B output.

(XB_IN8)

Input

Crossbar module input 8.

(OPAMPA_OUT)

Output

Operational amplifier A output.

GPIOC5

—

Input

Input/

Output

GPIO Port C5 — After reset, the default state is

GPIOC5.

(DACA_O)

Output

12-bit digital-to-analog output.

(XB_IN7)

Input

Crossbar module input 7.

GPIOC6

Input

Input/

Output

GPIO Port C6 — After reset, the default state is

GPIOC6.

(TA2)

Input/

Output

Quad timer channel 2 input/output.

(XB_IN3)

Input

Crossbar module input 3.

(CMP_REF)

Input

Input 5 of analog comparator A and B and C and D.

(SS0_B)

Input/

Output

SPI0 slave select.

GPIOC7

—

Input

Input/

Output

GPIO Port C7 — After reset, the default state is

GPIOC7.

Table continues on the next page...

MC56F81xxx signal and pin descriptions

MC56F81xxx, Rev. 1.1, 12/2020

NXP Semiconductors

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