RA8870 Datasheet, PDF (6/9 Pages) RAIO Technology Inc. – Character/Graphic TFT LCD Controller

Version 1.1 Brief Specification
RA8870
Character/Graphic TFT LCD Controller
Pin Name
VR
VG
VB
I/O Pin#
Pin Description
O
69 ^{Analog R Output}
The analog output for analog TFT driver red data denotation.
Analog G Output
O 68
The analog output for analog TFT driver green data denotation.
Analog B Output
O 67
The analog output for analog TFT driver blue data denotation.
4-3 Touch Panel and PWM Interface
Pin Name
UR / YN
UL / YP
LR / XN
LL / XP
SENSE
PWM1
PWM2
I/O Pin#
Pin Description
UR/YN Signal for Touch Panel
Touch Panel control signal.
A 102 _{When 5-wires TP is selected, it is used as UR output signal.}
When 4-wires TP is selected, it is used as YN switch signal.
UL/YP Signal for Touch Panel
Touch Panel control signal.
A 101 ^{When 5-wires TP is selected, it is used as UL output signal.}
When 4-wires TP is selected, it is used as YP switch signal.
This pin must be connected a 100KΩ pull-up resistor when the
Touch Panel function is enable.
LR/XN Signal for Touch Panel
Touch Panel control signal.
A 99
When 5-wires TP is selected, it is used as LR output signal.
When 4-wires TP is selected, it is used as XN switch signal.
LL/XP Signal for Touch Panel
Touch Panel control signal.
A 103 _{When 5-wires TP is selected, it is used as LL output signal.}
When 4-wires TP is selected, it is used as XP switch signal.
SENSE Signal for 5-wire Touch Panel
A
100
When 5-wires TP is selected, it is used as SENSE analog input
signal.
When 4-wires TP is selected, it is not used as should be floating.
O
7, ^{PWM Output 1}
8 _{PWM output pin. The duty could be programmed by register setting.}
RAiO TECHNOLOGY INC.
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