RA8806
Preliminary Version 1.0
Two Layers Character/Graphic LCD Controller
3. Block Diagram
ROM, Register Block, Analog to Digital Converter (ADC), Pulse Width Modulation (PWM), LCD driver
interface and microprocessor interface. Figure 3-2 is the system block for application of RA8806.
KIN[7:0]
KOUT[7:0]
Smart
Key-Scan
Controller
Display Data RAM
(9.6KByte x 2)
DDRAM1
DDRAM2
LP
FR
YD
ZDOFF
XCK
LD[7:0]
Display
Timing
Generator
PWM_OUT
PWM
Controller
Registers
XG
Oscillator
XD
512KByte
Font
ROM
512Byte
CGRAM
Touch Panel
X1
X2
Y1
Y2
MCU Interface
System Configure
Controller
ZCS1
CS2
ZWR
ZRD
RS
INT
BUSY
DATA[7:0]
ZRST
Figure 3-1 : RA8806 Block Diagram
MI
DW
DB
CLK_OUT
LCD Driver
MPU
LCD Panel
RA8806
8x8
Key Pad
Booster
(Contrast Adj.)
LCD Driver
H/W
Set Up
X’tal
Touch
Panel
Figure 3-2 : RA8806 System Block Diagram
RAiO
TECHNOLOGY INC.
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www.raio.com.tw
RAIO [ RAIO TECHNOLOGY INC. ]
