ra8806 RAIO Technology Inc., ra8806 Datasheet - Page 7

• Manufacturer Part Number: ra8806
• Description: Two Layers Character/graphic Lcd Controller
• Manufacturer: RAIO Technology Inc.

Preliminary Version 1.2
3. Block Diagram
RAiO
Figure 3-1 is the internal block diagram of RA8806. The RA8806 consists of two Display Data RAM, Font
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.
TECHNOLOGY INC.
PWM_OUT
KOUT[7:0]
KIN[7:0]
XG
XD
Key Pad
Set Up
MPU
8x8
H/W
Key-Scan
Controller
Controller
Oscillator
Smart
PWM
Figure 3-2 : RA8806 System Block Diagram
MCU Interface
Figure 3-1 : RA8806 Block Diagram
RA8806
512KByte
ROM
Font
Display Data RAM
X’tal
(9.6KByte x 2)
DDRAM1
Registers
DDRAM2
7/184
System Configure
Two Layers Character/Graphic LCD Controller
CGRAM
512Byte
(Contrast Adj.)
LCD Driver
Booster
Touch
Panel
Touch Panel
Generator
Controller
Display
Timing
LCD Driver
LCD Panel
www.raio.com.tw
LP
FR
YD
ZDOFF
XCK
LD[7:0]
X1
X2
Y1
Y2
RA8806