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