upd70f3422gj-gae-qs-ax Renesas Electronics Corporation., upd70f3422gj-gae-qs-ax Datasheet - Page 35

• Manufacturer Part Number: upd70f3422gj-gae-qs-ax
• Description: 32-bit Single-chip Microcontroller
• Manufacturer: Renesas Electronics Corporation.

Features summary
Chapter 2 Pin Functions
2.1 Overview
Preliminary User’s Manual U17566EE1V2UM00
This chapter lists the ports of the microcontroller. It presents the configuration
of the ports for alternative functions. Noise elimination on input signals is
explained and a recommendation for the connection of unused pins is given at
the end of the chapter.
The microcontroller offers various pins for input/output functions, so-called
ports. The ports are organized in port groups.
To allocate other than general purpose input/output functions to the pins,
several control registers are provided.
For a description of the terms pin, port or port group, see “Terms“ on page 39.
• Number of ports and port groups:
• 5V I/O:
• 24 high-drive ports for direct stepper motor drive.
• Configuration possible for individual pins.
• The following features can be selected for most of the pins:
• 8 ports for Schmitt and non-Schmitt chararacteristic configurable.
• The following registers are offered for most of the ports:
Can be used as 3V I/O with degraded electrical parameters. Please refer to
the Electrical Target Specification.
– One out of two input thresholds
– Output current limit
– Open drain emulation
– Direct register for reading the pin values
– Port register with selectable read source (for improved bit set / bit clear
Device
µPD70F3427
all others
capabilities)
I/O ports
101
98
Number of ports
Input ports
16
16
Number of port groups
15
14
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