Copyright © Bridgetek Pte Ltd

4

FT801 Embedded Video Engine Datasheet

Version 1.3

Document Reference No.: BRT_000001

Clearance No.: BRT#003

Table of Contents

1

Typical Applications....................................................... 2

1.1 Part Numbers............................................................................. 2

2

FT801 Block Diagram .................................................... 3

3

Device Pin Out and Signal Description........................... 6

3.1 VQFN-48 Package Pin Out .......................................................... 6

3.2 Pin Description .......................................................................... 6

4

Function Description ..................................................... 9

4.1 Serial Host Interface.................................................................. 9

4.1.1

SPI Interface ............................................................................................ 11

4.1.2

I²C Interface ............................................................................................ 11

4.1.3

Serial Data Protocol................................................................................... 11

4.1.4

Host Memory Read .................................................................................... 11

4.1.5

Host Memory Write.................................................................................... 12

4.1.6

Host Command ......................................................................................... 12

4.1.7

Interrupts ................................................................................................ 13

4.2 System Clock ........................................................................... 14

4.2.1

Clock Source ............................................................................................ 14

4.2.2

Phase Locked Loop .................................................................................... 15

4.2.3

Clock Enable............................................................................................. 15

4.2.4

Clock Frequency........................................................................................ 15

4.3 Graphics Engine ....................................................................... 15

4.3.1

Introduction ............................................................................................. 15

4.3.2

ROM and RAM Fonts .................................................................................. 16

4.4 Parallel RGB Interface ............................................................. 19

4.5 Miscellaneous Control .............................................................. 20

4.5.1

Backlight Control Pin ................................................................................. 20

4.5.2

DISP Control Pin ....................................................................................... 20

4.5.3

General Purpose IO pins ............................................................................ 20

4.5.4

Pins Drive Current Control .......................................................................... 20

4.6 Audio Engine............................................................................ 21

4.6.1

Sound Synthesizer .................................................................................... 21

4.6.2

Audio Playback ......................................................................................... 23

4.7 Touch-Screen Engine ............................................................... 24

4.7.1

Compatibility mode ................................................................................... 24

4.7.2

Extended mode......................................................................................... 25