BT818Q-R datasheet(4/59 Pages) BRIDGETEK

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BT817/8 Advanced Embedded Video Engine Datasheet

Version 1.1

Document No.: BRT_000302 Clearance No.: BRT#154

Table of Contents

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

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

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

Device Pin Out and Signal Description........................... 7

3.1 BT817 VQFN-64 Package Pin Out ............................................... 7

3.2 BT818 VQFN-64 Package Pin Out ............................................... 7

3.3 Pin Description .......................................................................... 8

Functional Description................................................. 11

4.1 Quad SPI Host Interface .......................................................... 11

4.1.1

QSPI Interface .......................................................................................... 11

4.1.2

Serial Data Protocol................................................................................... 13

4.1.3

Host Memory Read .................................................................................... 13

4.1.4

Host Memory Write.................................................................................... 14

4.1.5

Host Command ......................................................................................... 14

4.1.6

Interrupts ................................................................................................ 17

4.2 System Clock ........................................................................... 18

4.2.1

Clock Source ............................................................................................ 18

4.2.2

Phase Locked Loop .................................................................................... 18

4.2.3

Clock Enable............................................................................................. 18

4.2.4

Clock Frequency........................................................................................ 19

4.3 Graphics Engine ....................................................................... 19

4.3.1

Introduction ............................................................................................. 19

4.3.2

ASTC ....................................................................................................... 19

4.3.3

ROM and RAM Fonts .................................................................................. 20

4.4 SPI NOR Flash Interface .......................................................... 23

4.5 Parallel RGB Interface ............................................................. 24

4.6 Miscellaneous Control .............................................................. 28

4.6.1

Backlight Control Pin ................................................................................. 28

4.6.2

DISP Control Pin ....................................................................................... 28

4.6.3

General Purpose IO pins ............................................................................ 28

4.6.4

Pins Drive Current Control .......................................................................... 28

4.7 Audio Engine............................................................................ 29

4.7.1

Sound Synthesizer .................................................................................... 29

4.7.2

Audio Playback ......................................................................................... 31

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