ra8816 RAIO Technology Inc., ra8816 Datasheet - Page 29

• Manufacturer Part Number: ra8816
• Description: 144x65 Character/graphic Lcd Driver
• Manufacturer: RAIO Technology Inc.

Preliminary Version 1.6
RAiO TECHNOLOGY INC.
Condition
Start
Condition
Start
1
Ack : Acknowledge(SDA LOW)
NA : Not Acknowledge(SDA HIGH)
RW : Master Read(1) / Write(0) Command
SDA
SCK
Address[7-1]
CS
Address
Slave
---
1
Address[7-1]
7
Address
Slave
---
From Master to Slave
From Save to Master
May be not need
‘0’(write)
RW
8
7
Ack
‘0’(write)
9
Figure 6-12: Register Read/Write Access on 3-Wires I/F
RW
8
RW
RS=0
1
Ack
9
R6R5……R0
Figure 6-11a：Register Write on IIC I/F
Figure 6-11b：Register Read on IIC I/F
2 ---
Register
RS : Select Register(0) / Memory(1)
Number
RS(0)
8
RS=0
1
Ack
9
R7 R6 ………………….. R0
R6R5……R0
2 ---
Register
Repeat Start Or
Number
Stop
Stop + Start
Register No.
29/68
8
Start
1
Address[7:1]
Ack
Address
Slave
9
---
7
First Register
D7D6…..D0
‘1’(Read)
1 --- 8
RW
DATA
8
D7 D6 …………………. D0
144x65 Character/Graphic LCD Driver
Ack
9
D7D6…..D0
R/W DATA.
Ack
9
1 ---
Register
Data
8
Second Register
D7D6…..D0
1 ---
DATA
Ack
9
Repeat Register
8
D7D6…..D0
1 ---
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Data
NA
8
9
RA8816
NA
Condition
9
Stop
Condition
Stop