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BT81X (815/6) Advanced Embedded Video Engine Datasheet

BT81X (815/6) Advanced Embedded Video Engine Datasheet

Product catalog summary

Overview: The BT81X Series by Bridgetek Pte Ltd comprises advanced graphic controllers, specifically the BT815 and BT816 models, designed for embedded applications to create high-quality Human Machine Interfaces (HMIs). These models support high-resolution graphics, video playback, and touch control interfaces.

Key Features:

Advanced Embedded Video Engine (EVE) for high-resolution graphics and video playback.
Support for multiple widgets and Adaptive Scalable Texture Compression (ASTC) format.
External QSPI NOR flash support up to 2Gbit for storing graphic elements.
Touch screen support: 4-wire resistive (BT816) and capacitive with up to 5 touch points (BT815).
Built-in 12MHz crystal oscillator with PLL for a programmable system clock up to 72MHz.
Video RGB parallel output with configurable PCLK up to 72MHz.
Support for LCD displays up to SVGA resolution (800x600).
Integrated 1MByte graphics RAM, eliminating the need for frame buffer RAM.
Audio capabilities include mono audio output, sound synthesizer, and audio wave playback.
Power management features include power down, sleep, and standby states.
Operating temperature range from -40°C to 85°C.

Applications: Suitable for point of sales machines, multi-function printers, home security systems, medical appliances, GPS/Satnav, vending machine control panels, and more.

Part Numbers:

BT815Q-x: EVE with ASTC and external NOR flash, capacitive touch.
BT816Q-x: EVE with ASTC and external NOR flash, resistive touch.

Technical Specifications:

Device pin out and signal descriptions for BT815 and BT816 models.
Functional descriptions cover interfaces such as Quad SPI Host Interface, System Clock, Graphics Engine, etc.
Power management details on power supply, internal regulator, and power modes.
Memory map and device characteristics, including absolute maximum ratings and ESD specifications.

Packaging: Available in a compact Pb-free, VQFN-64 package, compliant with RoHS standards.

Disclaimer: Information is preliminary and subject to change. Includes a disclaimer regarding the suitability of the product for medical applications and liability for damages.

Pin Descriptions: Detailed descriptions of the pins for BT815 and BT816, including pin number, name, type, and function.

Functional Description: The BT815/6 is an advanced embedded video controller with several functional blocks, including a Quad SPI Host Interface, Quad SPI Flash Interface, System Clock, Graphics Engine, Parallel RGB video interface, Audio Engine, and Touch-screen support.

Quad SPI Host Interface: Uses a Quad SPI interface to communicate with host microcontrollers, supporting SPI mode 0 and operating in SINGLE, DUAL, or QUAD channel modes.

Serial Data Protocol: Treated as a memory-mapped SPI device by the host, with a large address space for graphics, audio, and touch control.

Host Commands: Lists various host commands for controlling power modes, clock settings, and configuration options.

Pin Configuration and Functionality: Outlines various pin configurations for the BT81X Advanced Embedded Video Engine.

Power Down State: During power down, all output and in/out pins are not driven.

Interrupts: Managed via REG_INT_EN, REG_INT_FLAGS, and REG_INT_MASK.

System Clock: Supports three clock sources: an internal relaxation oscillator, an external 12MHz crystal, or a 12MHz square wave clock.

Graphics Engine: Processes display lists for rendering, supporting various primitive objects and operations.

ASTC Compression: Used for efficient texture compression, reducing ROM size significantly without noticeable quality loss.

Fonts: Includes ROM fonts and supports custom fonts in RAM or external flash.

Specifications: Detailed specifications for the BT81X (815/6) Advanced Embedded Video Engine, focusing on its various interfaces and functionalities.

SPI NOR Flash Interface: Uses a SPI master to connect to external SPI NOR Flash, allowing graphics assets to be stored and fetched directly by the graphics engine.

Parallel RGB Interface: Consists of 29 signals and is configured through RGB registers for LCD operation and timing parameters.

Miscellaneous Control: Describes control features such as backlight dimming via PWM, DISP control pin, and general-purpose IO pins.

Audio Engine: Offers mono audio output with sigma-delta modulation, supporting sound synthesis and audio file playback.

Audio Playback and ADPCM Samples: Describes the handling of ADPCM samples, allowing continuous audio streaming with a large sample buffer and looping.

Touch-Screen Engine: Supports both resistive and capacitive touch panels.

Resistive Touch Control: Includes components like ADC, axis-switches, and an ADC input multiplexer.

Capacitive Touch Control: Communicates with external modules via I2C, supporting up to 5 touches.

Compatibility and Extended Modes: In compatibility mode, the system mimics resistive touch interfaces.

Short-Circuit Protection: Includes protection against short-circuits on the resistive touch screen lines.

Capacitive Touch Configuration: Users can adjust default values for touch sensitivity by configuring registers after a chip reset.

Host Driven Multi-Touch: The host MCU can directly supply touch inputs to the BT815 using touch host mode.

Power Management: Operates with a single 3.3V supply and includes an internal regulator.

Power States:

STANDBY State: The clock oscillator and PLL remain active, but the system clock to the BT815/6 core engines is disabled.
SLEEP State: The clock oscillator, PLL, and system clock are disabled, but register contents are retained.
POWERDOWN State: All clocks are disabled, core engines are powered down, and register contents are lost upon power-up.
Wake-up Procedure: From POWERDOWN, the device can be reactivated using an SPI ACTIVE command.

Reset and Boot-up Sequence:

Reset Events: Include Power-on-Reset, toggling the PD_N pin, and specific SPI commands.
Boot-up Process: After reset, the device enters SLEEP state.

Pin Status: Pin statuses vary across power states.

Memory Map: Uses a 22-bit address space with specific prefixes for read/write operations.

Registers: Lists various registers with their addresses, bit sizes, read/write capabilities, and reset values.

Overview of BT815/6 Registers: Registers are 4-byte aligned, with specific bits reserved for future use.

Devices Characteristics and Ratings:

Absolute Maximum Ratings: Include storage temperature, ambient temperature with power applied, and supply voltages.
ESD and Latch-up Specifications: Rated for > ±2kV in Human Body Mode and > ±200V in Machine Mode.
DC Characteristics: Operating supply voltages for VCCIO and VCC are specified.

AC Characteristics:

System Clock and Reset: The internal relaxation clock has a trimmed frequency target of 12 MHz.
SPI Interface Timing: Detailed timing specifications for SPI clock periods.
RGB Interface Timing: Timing characteristics for pixel clock period and output delays.

Application Examples: Circuit diagrams for BT815 and BT816 application circuits.

Package Parameters: Available in a VQFN-64 package with specified dimensions and markings.

Overview: The document is a datasheet for the BT81X (815/6) Advanced Embedded Video Engine by Bridgetek Pte Ltd.

Specifications: Includes comprehensive specifications for the BT81X series.

Procedures: Describes various procedures for interfacing with the BT81X.

Standards and Norms: Emphasizes compliance with safety and regulatory standards.

Recommendations: Advises that the application-related information is for reference only.

Contact Information: Provides contact details for Bridgetek's headquarters and branch offices.

Appendices: Includes references to additional documents and a list of acronyms and abbreviations.

Catalog excerpts

BT81X (815/6) Advanced Embedded Video Engine Datasheet-1

Bridgetek noinciwr. TECHNOLOGY BT81X (815/6) Advanced Embedded Video Engine Datasheet Version 1.0 Document No.: BRT_000220 Clearance No.: BRT#126 Bridgetek Pte Ltd BT81X (815/6) Advanced Embedded Video Engine Datasheet The BT81X Series is an easy to use graphic controllers targeted at embedded applications to generate high-quality Human Machine Interfaces (HMIs). It has the following features: • Advanced Embedded Video Engine(EVE) with high resolution graphics and video playback • BT815/6 functionality includes graphic control, audio control, and touch control interface. • Support multiple widgets for simplified design implementation • Built-in graphics operations allow users with little expertise to create high-quality displays • Support Adaptive Scalable Texture Compression (ASTC) format to save considerable memory space for larger fonts and graphics images • Support external QSPI NOR flash up to 2Gbit to store and fetch graphic elements (image, font, widget etc.) • Support 4-wire resistive touch screen (BT816) • Support capacitive touch screen with up to 5 touch point detection (BT815) • Hardware engine can recognize touch tags and track touch movement. Provides notification for up to 255 touch tags. • Enhanced sketch processing • Built-in 12MHz crystal oscillator with PLL providing programmable system clock up to 72MHz • Support crystal-less operation with internal relaxation clock source • Video RGB parallel output; configurable to support PCLK up to 72MHz and R/G/B output of 1 to 8 bits • Programmable timing to adjust HSYNC and VSYNC timing, enabling interface to numerous displays • Support for LCD display with resolution up to SVGA (800x600) and formats with data enable (DE) mode or VSYNC/HSYNC mode • Support landscape and portrait orientations • Display enable control output to LCD panel • Integrated 1MByte graphics RAM, no frame buffer RAM required • Support playback of motion-JPEG encoded AVI videos • Mono audio channel output with Sigma-delta modulation • Built-in sound synthesizer • Audio wave playback for mono 8-bit linear PCM, 4-bit ADPCM and g-Law coding format at sampling frequencies from 8 kHz to 48 kHz. Built-in digital filter reduces the system design complexity of external filtering • PWM output for display backlight dimming control • Advanced object oriented architecture enables low cost MPU/MCU as system host using SPI interfaces • Support SPI data lines in single, dual or quad mode; SPI clock up to 30MHz • Power mode control allows the chip to be put in power down, sleep and standby states • Supports I/O voltage from 1.8V to 3.3V • Internal voltage regulator supplies 1.2V to the digital core • Built-in Power-on-reset circuit • -40°C to 85°C extended operating temperature range • Available in a compact Pb-free, VQFN-64 package, RoHS compliant Neither the whole nor any part of the information contained in, or the product described in this manual, may be adapted or reproduced in any material or electronic form without the prior written consent of the copyright holder. This product and its documentation are supplied on an as-is basis and no warranty as to their suitability for any particular purpose is either made or implied. Bridgetek Pte Ltd will not accept any claim for damages howsoever arising as a result of use or failure of this product. Your statutory rights are not affected. This product or any variant of it is not intended for use in any medical appliance, device or system in which the failure of the product might reasonably be expected to result in personal injury. This document provides preliminary information that may be subject to change without notice. No freedom to use patents or other intellectual property rights is implied by the publication of this document. Bridgetek Pte Ltd, 178 Paya Lebar Road, #07-03, Singapore 409030. Singapore Registered Company Number: 201542387H

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BT81X (815/6) Advanced Embedded Video Engine Datasheet-2

Bridgetek noinciwr. TECHNOLOGY BT81X (815/6) Advanced Embedded Video Engine Datasheet Version 1.0 Document No.: BRT_000220 Clearance No.: BRT#126 Point of Sales Machines Multi-function Printers Instrumentation Home Security Systems Graphic touch pad - remote, dial pad Tele / Video Conference Systems Phones and Switchboards Medical Appliances Blood Pressure displays Heart monitors Glucose level displays Table 1- BT815/6 Embedded Video Engine Part Numbers Note: Packaging codes for x is: -R: Taped and Reel (3000 pcs per reel) -T: Tray packing (260 pcs per tray) For example: BT815Q-R is 3000 VQFN...

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BT81X (815/6) Advanced Embedded Video Engine Datasheet-3

Bridgetek noinciwr. TECHNOLOGY BT81X (815/6) Advanced Embedded Video Engine Datasheet Version 1.0 Document No.: BRT_000220 Clearance No.: BRT#126 For a description of each function please refer to Section 4. TOUCH CTPORRTP TOUCH SCREEN Figure 2-2 BT815/6 System Design Diagram BT815/6 with EVE (Embedded Video Engine) technology simplifies the system architecture for advanced human machine interfaces (HMIs) by providing support for display, audio, and touch as well as an object oriented architecture approach that extends from display creation to the rendering of the graphics.

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BT81X (815/6) Advanced Embedded Video Engine Datasheet-4

Bridgetek noinciwr. TECHNOLOGY BT81X (815/6) Advanced Embedded Video Engine Datasheet Version 1.0 Document No.: BRT_000220 Clearance No.: BRT#126

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BT81X (815/6) Advanced Embedded Video Engine Datasheet-5

Bridgetek noinciwr. TECHNOLOGY BT81X (815/6) Advanced Embedded Video Engine Datasheet Version 1.0 Document No.: BRT_000220 Clearance No.: BRT#126

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BT81X (815/6) Advanced Embedded Video Engine Datasheet-6

BT81X (815/6) Advanced Embedded Video Engine Datasheet Version 1.0 Document No.: BRT_000220

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BT81X (815/6) Advanced Embedded Video Engine Datasheet-7

BT81X (815/6) Advanced Embedded Video Engine Datasheet Version 1.0 RO VCC1V2 SCK MISO MOSI CS_N GPIO0/IO2 GPI01/I03 VCCIOI GPI02 INT_N PD_N GPI03 SPIM_SCLK SPIMSSN SPIMMOSI =BRT xxxxxxxxxx BT815Q YYWW-X RRHHHHRRRHHHHRH GND BO B1 B2 B3 B4 B5 B6 B7 PCLK DISP HSYNC VSYNC DE BACKLIGHT GND Figure 3-1 Pin Configuration BT815 VQFN-64(Top View)

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BT81X (815/6) Advanced Embedded Video Engine Datasheet-8

Bridgetek noinciwr. TECHNOLOGY BT81X (815/6) Advanced Embedded Video Engine Datasheet Version 1.0 Document No.: BRT_000220 Clearance No.: BRT#126

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