R7KA8D2AFDCAC datasheet(6/292 Pages) RENESAS

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Table 1.8

Communication interfaces (2 of 2)

Feature

Functional description

Layer 3 Ethernet Switch Module

(ESWM)

The Layer 3 Ethernet Switch Module (ESWM) consists of two channels of Gigabit Ethernet

controller, an Ethernet switch with high level routing capability, and multi-protocol interface

support. The Gigabit Ethernet controller conforms to the definition of the Ethernet MAC (Media

Access Control) layer in the IEEE 802.3 standard. This can transmit and receive Ethernet

(IEEE 802.3) frames by connecting with an external physical-layer LSI chip (PHY-LSI) which

complies with the standard. The Ethernet switch allows autonomous frame routing within a

same network interface protocol, or between different network interfaces protocols or optimized

gateway applications.

Pulse Density Modulation Interface

(PDMIF)

PDM-IF has maximum three channels that are connectable with external microphone which

outputs the pulse density modulated (PDM) signal. PDM-IF is connectable with up to three

external microphones. PDM-IF can filter and convert 1-bit digital data streams that were pulse

density modulated at a high sampling rate into 20-bit or 16-bit digital data at a lower sampling

rate.

Table 1.9

Analog

Feature

Functional description

16-bit A/D Converter (ADC16H)

A 16-bit A/D Converter is provided. Up to 23 analog input channels are selectable. Temperature

sensor output, and internal reference voltage and VBATT 1/6 voltage monitor are selectable for

conversion.

12-bit D/A Converter (DAC12)

A 12-bit D/A Converter (DAC12) is provided.

Temperature Sensor (TSN)

The on-chip Temperature Sensor (TSN) determines and monitors the die temperature for

reliable operation of the device. The sensor outputs a voltage directly proportional to the die

temperature, and the relationship between the die temperature and the output voltage is fairly

linear. The output voltage is provided to the ADC16H for conversion and can be further used by

the end application. The sensor outputs an abnormal temperature detection signal to the reset

control circuit and can be used to prevent the malfunction due to abnormal temperature.

High-Speed Analog Comparator

(ACMPHS)

The High-Speed Analog Comparator (ACMPHS) can be used to compare an analog input

voltage with a reference voltage and to provide a digital output based on the result of conversion.

Both the analog input voltage and the reference voltage can be provided to the ACMPHS from

internal sources (D/A converter output or internal reference voltage) and an external source.

Such flexibility is useful in applications that require go/no-go comparisons to be performed

between analog signals without necessarily requiring A/D conversion.

Table 1.10

Human machine interfaces (1 of 2)

Feature

Functional description

Graphics LCD Controller (GLCDC)

The Graphics LCD Controller (GLCDC) provides multiple functions and supports various data

formats and panels. Key GLCDC features include:

● GLCDC0BI/GLCDC1BI master function for accessing graphics data

● Superimposition of three planes (single-color background plane, graphic 1-plane, and

graphic 2-plane)

● Support for many types of 32-bit or 16-bit per pixel graphics data and 8-bit, 4-bit, or 1-bit

LUT data format

● Digital interface signal output supporting a video image size of WXGA.

2D Drawing Engine (DRW)

The 2D Drawing Engine (DRW) provides flexible functions that can support almost any object

geometry rather than being bound to only a few specific geometries such as lines, triangles,

or circles. The edges of every object can be independently blurred or antialiased. Rasterization

is executed at one pixel per clock on the bounding box of the object from left to right and top

to bottom. The DRW can also raster from bottom to top to optimize the performance in certain

cases. In addition, optimization methods are available to avoid rasterization of many empty

pixels of the bounding box.

The distances to the edges of the object are calculated by a set of edge equations for every pixel

of the bounding box. These edge equations can be combined to describe the entire object.

If a pixel is inside the object, it is selected for rendering. If it is outside, it is discarded. If it is on

the edge, an alpha value can be chosen proportional to the distance of the pixel to the nearest

edge for antialiasing.

Every pixel that is selected for rendering can be textured. The resulting ARGB quadruple can

be modified by a general raster operation approach independently for each of the four channels.

The ARGB quadruples can then be blended with one of the multiple blend modes of the DRW.

The DRW provides two inputs (texture read and framebuffer read), and one output (framebuffer

write). The internal color format is always ARGB (8888). The color formats from the inputs are

converted to the internal format on read and a conversion back is made on write.

RA8D2 Datasheet

1. Overview

R01DS0493EJ0130 Rev.1.30

Feb 27, 2026

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