SPC560P50L5 datasheet(34/112 Pages) STMICROELECTRONICS

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Package pinouts and signal descriptions

SPC560P44Lx, SPC560P50Lx

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Doc ID 14723 Rev 9

2.2.3

Pin muxing

Table 7 defines the pin list and muxing for the SPC560P44Lx, SPC560P50Lx 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.

SPC560P44Lx, SPC560P50Lx devices provide four 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.

●

Symmetric pads are designed to meet FlexRay requirements.

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

the cost of reducing AC performance. For more information, see the datasheet’s “Pad AC

Specifications” section.

TMS

JTAG state machine control

Bidirectional

Slow

Fast

TCK

JTAG clock

Input only

Slow

—

TDI

Test Data In

Input only

Slow

Medium

TDO

Test Data Out

Output only

Slow

Fast

Reset pin, available on 100-pin and 144-pin package.

RESET

Bidirectional reset with Schmitt trigger

characteristics and noise filter

Bidirectional

Medium

—

Test pin, available on 100-pin and 144-pin package.

VPP_TEST

Pin for testing purpose only. To be tied to

ground in normal operating mode.

——

—

107

1. SCR values refer to the value assigned to the Slew Rate Control bits of the pad configuration register.

Table 6.

System pins (continued)

Symbol

Description

Direction

Pad speed(1)

SRC = 0

SRC = 1

100-pin

144-pin

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