P.9
nINTERFACEDESCRIPTION
Pin
NO.
Symbol I/Oor
connectto Description Whennot
inuse
1 YU NC NC -
2 XL NC NC -
3 YD NC NC -
4 XR NC NC -
5 GND Powersupply Ground -
6 VCI Powersupply Powersupplyforliquidcrystalanalogcircuit.
AMP:2.5V~3.3V,TYPE:2.8V -
7 VDD3 Powersupply Powersupplytointerface pinsandthelogic.
AMP:1.65V~3.3V,TYPE:2.8V -
8 VDD3_P Powersupply
PowersupplytoLEDPWM.
Supplyavoltageaccording toLEDdriverinput.
ThisshouldbeconnectedtoVDD3evenwhen
LEDPWM isnotused.
VDD3
9 BC_CTRL
10 BC
O
ThesepinsareLEDPWMforthismodule.Control
signalforbrightnessofLEDbacklight.PWM
signal swidthisselectedfrom 256 values
between0%(Low)and100%(High)byVDD3_P
amplitude.LEDPWMcanbeusedasasignalto
turnLEDon/offwhenthebacklightcontrol
functionisnotused.
Open
11 TE O
Hostprocessor
TearingEffectoutputsignal.Leaveopenwhen
notused. Open
12~
29 DB[17:0] I/O
Hostprocessor
18-bitbi-directionaldatabusinDBITypeB
operation.
8-bitinterface:UseDB[7:0]
9-bitinterface:UseDB[8:0]
16-bitinterface:UseDB[15:0]
18-bitinterface:UseDB[17:0]
Abnormalcurrent(throughcurrent)isnot
conductedwhenCSXisHigh andthedatabusis
Hi-z.
18-bitinputdatabusinDPIoperation.
16-bitinterface:UseDB[15:0]
18-bitinterface:UseDB[17:0]
VDD3
orGND
orOPEN
30 SDA I/O
Hostprocessor
Serialdatainput/outputpininDBITypeC
operation.Dataisinputontherisingedgeof
signalSCL. Dataisoutputonthefallingedgeof
SCLwhenserialdataoutputpinisselected.
VDD3or
GND
31 DOTCLK I
Hostprocessor
Pixelclocksignal.Thedatainputtiming isseton
therisingedge.LeaveopenwhenDPIisnot
selected.Connecttohostprocessorandinputan
IOVCC1/GND signalalwayswhenDPIis
selected.
VDD3or
GND
32 ENABLE I
Hostprocessor
DataenablesignalinDPIoperation.
Low:Select(Accessible)
High:Notselect(Inaccessible)Leaveopenwhen
DPIisnotselected.Connecttohostprocessorand
inputanIOVCC1/GND signalalwayswhenDPI
isselected.
VDD3or
GND
