SPC560P34L1 datasheet(35/103 Pages) STMICROELECTRONICS

35 / 103 page

SPC560P34L1, SPC560P34L3, SPC560P40L1, SPC560P40L3 Package pinouts and signal descrip-

Doc ID 16100 Rev 7

35/103

2.2.3

Pin multiplexing

Table 7 defines the pin list and muxing for the SPC560P34/SPC560P40 devices.

Each row of Table 7 shows all the possible ways of configuring each pin, via alternate

functions. The default function assigned to each pin after reset is the ALT0 function.

SPC560P34/SPC560P40 devices provide three main I/O pad types, depending on the

associated functions:

●

Slow pads are the most common, providing a compromise between transition time and

low electromagnetic emission.

●

Medium pads provide fast enough transition for serial communication channels with

controlled current to reduce electromagnetic emission.

●

Fast pads provide maximum speed. They are used for improved NEXUS debugging

capability.

Medium and Fast pads can use slow configuration to reduce electromagnetic emission, at

the cost of reducing AC performance. For more information, see “Pad AC Specifications” in

the device datasheet.

Table 7.

Pin muxing

Port

PCR

Alternate

function(1),(2)

Functions

Peripheral(3)

I/O

direc-

tion(4)

Pad speed(5)

SRC = 0 SRC = 1 64-pin 100-pin

Port A (16-bit)

A[0]

PCR[0]

ALT0

ALT1

ALT2

ALT3

—

GPIO[0]

ETC[0]

SCK

F[0]

EIRQ[0]

SIUL

eTimer_0

DSPI_2

FCU_0

SIUL

I/O

Slow

Medium

—

A[1]

PCR[1]

ALT0

ALT1

ALT2

ALT3

—

GPIO[1]

ETC[1]

SOUT

F[1]

EIRQ[1]

SIUL

eTimer_0

DSPI_2

FCU_0

SIUL

I/O

Slow

Medium

—

A[2]

PCR[2]

ALT0

ALT1

ALT2

ALT3

—

GPIO[2]

ETC[2]

—

A[3]

SIN

ABS[0]

EIRQ[2]

SIUL

eTimer_0

—

FlexPWM_0

DSPI_2

MC_RGM

SIUL

I/O

—

Slow

Medium

—

A[3]

PCR[3]

ALT0

ALT1

ALT2

ALT3

—

GPIO[3]

ETC[3]

CS0

B[3]

ABS[1]

EIRQ[3]

SIUL

eTimer_0

DSPI_2

FlexPWM_0

MC_RGM

SIUL

I/O

Slow

Medium

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