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 µ-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
package, RoHS compliant
Pb-free,
VQFN-64
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 prov ides
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
Copyright © Bridgetek Pte Ltd
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BT81X (815/6) Advanced Embedded Video Engine Datasheet
Version
1.0
Document No.: BRT_000220
Clearance No.: BRT#126
1 Typical Applications
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
Breathalyzers
Gas chromatographs
Power meter
Home appliance devices
Set-top box
Thermostats
Sprinkler system displays
Medical Appliances
GPS / Satnav
Vending Machine Control Panels
Elevator Controls
……and many more
1.1 Part Numbers
Part Number
BT815Q-x
Description
EVE with ASTC and external NOR flash,
capacitive touch
EVE with ASTC and external NOR flash,
resistive touch
Package
64 Pin VQFN, body 9 x 9 mm, pitch 0.5mm
BT816Q-x
64 Pin VQFN, body 9 x 9 mm, pitch 0.5mm
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 pieces in taped and reel packaging
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BT81X (815/6) Advanced Embedded Video Engine Datasheet
Version
1.0
Document No.: BRT_000220
Clearance No.: BRT#126
2 Block Diagram
Figure 2-1 BT815/6 Block Diagram
For a description of each function please refer to Section 4.
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.
Copyright © Bridgetek Pte Ltd
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BT81X (815/6) Advanced Embedded Video Engine Datasheet
Version
1.0
Document No.: BRT_000220
Clearance No.: BRT#126
Table of Contents
1
1.1
Typical Applications....................................................... 2
Part Numbers ............................................................................. 2
2
3
3.1
3.2
3.3
Block Diagram ............................................................... 3
Device Pin Out and Signal Description ........................... 7
BT815 VQFN-64 Package Pin Out ............................................... 7
BT816 VQFN-64 Package Pin Out ............................................... 7
Pin Description .......................................................................... 8
4
4.1
Functional Description ................................................. 12
Quad SPI Host Interface .......................................................... 12
QSPI Interface .......................................................................................... 12
Serial Data Protocol ................................................................................... 14
Host Memory Read .................................................................................... 14
Host Memory Write.................................................................................... 15
Host Command ......................................................................................... 15
Interrupts ................................................................................................ 19
4.1.1
4.1.2
4.1.3
4.1.4
4.1.5
4.1.6
4.2
System Clock ........................................................................... 20
Clock Source ............................................................................................ 20
Phase Locked Loop .................................................................................... 21
Clock Enable ............................................................................................. 21
Clock Frequency ........................................................................................ 21
4.2.1
4.2.2
4.2.3
4.2.4
4.3
Graphics Engine ....................................................................... 21
Introduction ............................................................................................. 21
ASTC ....................................................................................................... 22
ROM and RAM Fonts .................................................................................. 22
4.3.1
4.3.2
4.3.3
4.4
4.5
4.6
SPI NOR Flash Interface .......................................................... 26
Parallel RGB Interface ............................................................. 26
Miscellaneous Control .............................................................. 29
Backlight Control Pin ................................................................................. 29
DISP Control Pin ....................................................................................... 29
General Purpose IO pins ............................................................................ 29
Pins Drive Current Control .......................................................................... 30
4.6.1
4.6.2
4.6.3
4.6.4
4.7
Audio Engine ............................................................................ 30
Sound Synthesizer .................................................................................... 30
Audio Playback ......................................................................................... 32
4.7.1
4.7.2
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BT81X (815/6) Advanced Embedded Video Engine Datasheet
Version
1.0
Document No.: BRT_000220
Clearance No.: BRT#126
4.8
Touch-Screen Engine ............................................................... 33
Resistive Touch Control .............................................................................. 33
Capacitive Touch Control ............................................................................ 34
Compatibility Mode .................................................................................... 34
Extended Mode ......................................................................................... 35
Short-Circuit Protection .............................................................................. 35
Capacitive Touch Configuration ................................................................... 35
Host Driven Multi-Touch ............................................................................. 35
Touch Detection in none-ACTIVE State ........................................................ 37
4.8.1
4.8.2
4.8.3
4.8.4
4.8.5
4.8.6
4.8.7
4.8.8
4.9
Power Management ................................................................. 37
Power Supply ........................................................................................... 37
Internal Regulator and POR ........................................................................ 38
Power Modes ............................................................................................ 38
Reset and Boot-up Sequence ...................................................................... 40
Pin Status at Different Power States ............................................................ 40
4.9.1
4.9.2
4.9.3
4.9.4
4.9.5
5
5.1
5.2
Memory Map ................................................................ 42
Registers.................................................................................. 42
Chip ID..................................................................................... 47
6
6.1
6.2
6.3
6.4
Devices Characteristics and Ratings ............................ 48
Absolute Maximum Ratings ...................................................... 48
ESD and Latch-up Specifications .............................................. 48
DC Characteristics .................................................................... 48
AC Characteristics .................................................................... 51
System Clock and Reset ............................................................................. 51
SPI Interface Timing .................................................................................. 52
RGB Interface Timing ................................................................................ 53
6.4.1
6.4.2
6.4.3
7
8
8.1
Application Examples .................................................. 54
Package Parameters .................................................... 56
Part Markings .......................................................................... 56
Top Side .................................................................................................. 56
Bottom Side ............................................................................................. 56
8.1.1
8.1.2
8.2
8.3
VQFN-64 Package Dimensions ................................................. 57
Solder Reflow Profile ............................................................... 57
9
Contact Information .................................................... 59
Appendix A – References ................................................... 60
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