Document No.: FT_001165
FT81X Embedded Video Engine
Datasheet Version 1.2
Clearance No.: FTDI#440
Contents
1
Typical Applications...................................................................... 3
1.1 Part Numbers...................................................................................... 3
Block Diagram .............................................................................. 4
Device Pin Out and Signal Description.......................................... 7
3.1 FT810 VQFN-48 Package Pin Out ........................................................ 7
3.2 FT811 VQFN-48 Package Pin Out ........................................................ 7
3.3 FT812 VQFN-56 Package Pin Out ........................................................ 8
3.4 FT813 VQFN-56 Package Pin Out ........................................................ 8
3.5 Pin Description ................................................................................... 9
Function Description................................................................... 13
2
3
4
4.1 Quad SPI Host Interface................................................................... 13
4.1.1 QSPI Interface........................................................................................................... 13
4.1.2 Serial Data Protocol ................................................................................................... 15
4.1.3 Host Memory Read..................................................................................................... 15
4.1.4 Host Memory Write .................................................................................................... 16
4.1.5 Host Command.......................................................................................................... 16
4.1.6 Interrupts................................................................................................................. 20
4.2 System Clock .................................................................................... 20
4.2.1 Clock Source............................................................................................................. 20
4.2.2 Phase Locked Loop..................................................................................................... 21
4.2.3 Clock Enable ............................................................................................................. 21
4.2.4 Clock Frequency ........................................................................................................ 22
4.3 Graphics Engine................................................................................ 22
4.3.1 Introduction.............................................................................................................. 22
4.3.2 ROM and RAM Fonts................................................................................................... 22
4.4 Parallel RGB Interface ...................................................................... 26
4.5 Miscellaneous Control....................................................................... 28
4.5.1 Backlight Control Pin.................................................................................................. 29
4.5.2 DISP Control Pin........................................................................................................ 29
4.5.3 General Purpose IO pins ............................................................................................. 29
4.5.4 Pins Drive Current Control .......................................................................................... 29
4.6 Audio Engine..................................................................................... 30
4.6.1 Sound Synthesizer..................................................................................................... 30
4.6.2 Audio Playback.......................................................................................................... 32
4.7 Touch-Screen Engine ........................................................................ 32
4.7.1 Resistive Touch Control .............................................................................................. 32
4.7.2 Capacitive Touch Control ............................................................................................ 33
4.7.3 Compatibility mode.................................................................................................... 34
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