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Copyright 2020 Socionext Inc.AD04-00136-2E October 2020Edited: Consumer Business Group Media Solution Team

HDMI Module cecTalkerA module that makes your devices smart by connecting them with HDMI

HDMI Module cecTalker

V-by-One model[White]

HDMI model[Black]

[cecTalker HDMI model] [cecTalker V-by-One model]

HPD x3(HDMI-Rx)CEC x1(HDMI-Rx)

HDMI-Rx(Type A)

HDMI-Rx(Type A)

HDMI-Rx(Type A)

HDMI-Tx(Type A)

HEAC(±)

CEC(HDMI-Tx)

PIC Reset PIC Reset

PIC Reset

RPiShutdown

UART

Raspberry Pi I/F Child board I/FSPRESENSETM I/FUART/GPIO(I2S) Audio-Out/UART/Mode Control Switch/PIC Kit/Reaet/LED (6)

1.2V3.3V

3.3V

(I2S)

Reset

NIRQ_0

MicroController

HDMIController

4.0VDCDC

5.0V1.8V4.0V

3.3V

1.2V

3.3VDCDC

1.2VDCDC

HPD x4(HDMI-Rx)CEC x1(HDMI-Rx)

CEC(HDMI-Tx)

IR

Audio OutAudio In

12V

USBType-C5V/1.5A

3.3VDCDC

5V3.3V

1.2V1.2VDCDC

3.3V

3.3V

Reset

NIRQ_0

MicroController

HDMIController

HDMI-Rx(Type D)

HDMI-Rx(Type D)

HDMI-Rx(Type D)

HDMI-Rx(Type D)

HDMI-Tx(Type A)

V-by-OneTx

V-by-OneRx

1.2V

PowerSupply5V/2A＊

1 2

Image of product development using "cecTalker"

The HDMI module cecTalker(pronounced “C-E-C-Talker”) enables the user to easily design UI and UX for devices in order to make them convenient just by connecting with HDMI. cecTalker makes it easy to design a high-speed interface for video and audio, strongly supporting customers' development work.

These days, video and audio devices for 2K and even up to 8K Super Hi-Vision can be connected to one another using a single cable via HDMI terminals. However, developing an product with HDMI is difficult and has been a tough obstacle for many developers. In order to solve this problem, Socionext leveraged its sophisticated technological capabilities and its wealth of experience in HDMI to offer an HDMI module cecTalker that simplifies the development of products with HDMI.

In particular, cecTalker allows these devices to be connected, which was previously difficult to do, by focusing on the CEC functionality defined in the HDMI standard and by connecting the devices using only the HDMI plug-in. cecTalker expands the possibilities of medical, monitoring, and broadcasting equipment, as well as video and audio equipment, depending on how you want to use them. cecTalker also allows customers to create prototypes by connecting to a PC, Raspberry Pi＊1, Arduino＊2, or SPRESENSETM＊3 and to perform other development work on platforms that they are familiar with.

First, let's try using cecTalker in various ways. For example, try creating an app by connecting a PC and an AV device, or creating a convenient device by combining with Raspberry Pi, and so on.

When you have determined the concept, try creating a prototype by designing the exterior or customizing the cecTalker board to fit the exterior.

After checking the prototype, start mass production by putting the cecTalker in the assembly process at the factory. The cecTalker can also be certified, so it is safe to use as it is.

Product line-up

Overview

cecTalker has two models: HDMI model [Black] and V-by-One model [White]. These models not only simplify the development, evaluation, and testing work performed by customers, but they also allow customers to incorporate them into their products and mass produce them. Devices connected with HDMI cables can also be integrated using CEC.

Features

＊1: Raspberry Pi is a registered trademark of the Raspberry Pi Foundation.＊2: Arduino is a registered trademark of ARDUINO SA.＊3: SPRESENSE is a trademark of Sony Corporation.

＊1: SPRESENSETM or Raspberry Pi Exclusive＊2: Main or Sub Exclusive＊3: 2.0A in case of SPRESENSETM stacking

＊: 2.0A in case of SPRESENSETM stacking

Specification

Block diagram

ManufacturingPrototypingConcept making

Step -3Step -1 Step -2

Product name cecTalker HDMI model [Black] cecTalker V-by-One model [White]

Prototype/Development/Mass production

•CEC transmission function•CEC reception function (Support for customization)•3 to 1 HDMI input selection function•2K/4K low-latency super-resolution function

3 ports (Connector: Type-A) 4 ports (Connector: Type-D)

1 port (Connector: Type-A) 1 port (Connector: Type-A)

5V/1.5A (Connector: USB Type-C)

1 port

1 port

Standard

Support for customization

Support for customization

-

-

-

Support for customization

2 ports (for Raspberry Pi and SPRESENSETM＊1)

2 ports (for Raspberry Pi and a sub-board)

2 ports (for Raspberry Pi and a sub-board＊2)

5V/1A＊3 (Connector: USB micro-B)

•HDMI to V-by-One conversion function•V-by-One to HDMI conversion function•4 to 1 HDMI input selection function•2K/4K low-latency super-resolution function

Prototype/Development/TestingPurpose

Function

Interface

Power supply

HDMI

Rx

Tx

CEC

ARC

Rx

Tx

Rx/Tx

Rx/Tx

V-by-One

I2S

UART

Create an environment for smart living and smart work at home by yourself. This module makes it possible to have something that was not available or possible up until now.

HDMI Module cecTalker

[Main-board]

[HDMI selector (standalone)] [HDMI repeater (standalone)] [CEC switcher] [2K→4K/4K→2K converter]

HDMI → HDMIHDMI → HDMIHDMI → HDMIHDMI → HDMI

85ｍｍ

56ｍｍ

[Main-board]

SEL: Each time you press the button, the selected HDMI input terminal is switched.RST: The main-board is reset forcibly.

+5VPowerfeed

HDMI Tx(Type-A)

HDMI Rx(Type-A)

HDMI Rx(Type-A)

HDMI Rx(Type-A)

RST

SEL

Interface connector to Raspberry Pi

HDMIController

HDMIController

HDMIController

HDMIController

HDMIController

[Monitor & Recorder][Monitor] [Effector] [Player]

Recordingsystems

Controllingthe recordingby voice

CEC HDMI

Applicationboard

Application board

SDI/HDMI

HDMI

STB-DVD

TV

HDMI

HDMI

CAM

USB CEC

CEC

HDMI

RCA

HEAC

I2S

ARCIR

CEC

CEC

RS-232C/VISCA

RS-232C/VISCA

Ether

Control

NetworkEncoderbox

Optionbox

Optionbox

[Camera]

[Speaker] [Recorder & player] [Camera] [TV]

[Remote controller][Speaker]

UART

UART

I2S

Operating field recording, monitoring device, and educational device

Medical, security, and office Sports, concert, and live event

Audio effector and hearing aid device

HDMI audio recorder/player

[Home theater] [Smart speaker & Cloud]Smart home theater

Audio system

Applicationboard

UART

HDMIHDMI

[Monitor & Recorder]

Recordingsystems

[Camera] [Camera][Server] [Encoder]

RS-232C/VISCA

HDMI SDIHDMI

CEC

USB

HDMIHDMI

CEC

HDMI

HDMI

HDMI/CEC

Applicationboard

CECCEC

Applicationboard

UART I2SUART

I2SUART

HDMI

Applicationboard

Application board

GPIOUART

HDMI

CEC

CEC

ARC

HDMI

HDMI

Ether

UARTI2S

(SPDIF)

3 4

The cecTalker HDMI model [Black] comprises only the main-board. An AC adapter and HDMI cables are required separately.

①AC adapter (5V 1A＊): Connect it to the main-board using the USB micro-B connector. (＊: 2.0A in case of SPRESENSETM stacking)②HDMI cable (Type-A): Use it to connect the main-board with the monitor.③HDMI cable (Type-A): Use it to connect the main-board with the source device. (Up to three cables can be connected.)

The cecTalker main-board. cecTalker can be operated using only this board. cecTalker can be used by stacking on Raspberry Pi or SPRESENSETM. When using Raspberry Pi, connect it to the GPIO connector. When using SPRESENSETM, connect it to the dedicated pin on the rear surface.

Product name

Main-board

Description Product appearance

System application example

Product appearance

Simple application example

Items that need to be prepared separately:

Items included in the product:

cecTalker HDMI model [Black]The cecTalker HDMI model [Black] has HDMI input/output terminals. The user can reset the board from the button on the board and select an input port. The status is indicated by the LED display.

HDMI Module cecTalker

UART

[Main-board]

[Sub-board (For UI Extension)] [Sub-board (For UI Extension)]

SEL: Each time you press the button, the selected HDMI input terminal is switched.RST: The main-board is reset forcibly.

85ｍｍ

56ｍｍ

[Main-board]

HDMIController

HDMI Rx(Type-D)

+5VPower feed

Interface connector toRaspberry Pi

HDMI TX

(Type-A)

VBO TX

VBO RX

To the sub-board

Audio out

LEDs

DIP SW

To the main-board

PICKit

SEL RST

UART

HDMIController

HDMI → HDMI HDMI → V-by-One V-by-One → HDMI V-by-One → V-by-One

HDMIController

HDMIController

HDMIController

HDMIController

[Monitor]

CECUART

V-by-One

[Tuner board]

[Display panel]

[Display panel]

TV software development and evaluation/test jigs

Digital signage

Two-piece TV set

UART

Application board

I2S

V-by-One I2S

[Source devices]

UART

V-by-One

[Video board]

V-by-One

CEC

[HDMI selector (standalone)] [HDMI selector (embedded in the panel)] [V-by-One/HDMI bridge] [2K→4K/4K→2K converter]

5 6

The cecTalker V-by-One model [White] has the input/output terminals for HDMI and V-by-One on the main-board. By connecting it to a sub-board for user interface (UI) extension, it is possible to switch modes and display the status.

The cecTalker V-by-One model [White] includes the main-board, sub-board, and FF cable. Note that the AC adapter, HDMI cable, and V-by-One cable are required separately.

Items that need to be prepared separately:

Simple application example

cecTalker V-by-One model [White]

Product appearance

Items included in the product:

System application example

The cecTalker main-board. cecTalker can be operated with only this board. Use it by stacking on Raspberry Pi. (cecTalker supports Raspberry Pi's GPIO.)

The UI extension board. (Use this board to control the main-board.)

The FF cable to connect the main-board to the sub-board.

Product name

Main-board

Sub-board

FF cable

Description Product appearance

①AC adapter (5V 1.5A) : Connect it with the main-board using the USB Type-C connector.②HDMI cable (Type-A/Type-A): Use it to connect the main-board with the monitor. (It is not required for V-by-One output.)③HDMI cable (Type-A/Type-D): Use it to connect the main-board with the source device. (Up to four cables can be connected.)④V-by-One cable : Prepare the cable as needed.