S1D1 Epson Electronics America, Inc., S1D1 Datasheet - Page 182

• Manufacturer Part Number: S1D1
• Description: LCD Controller-driver With Built-in Character ROM
• Manufacturer: Epson Electronics America, Inc.

(11) Read-Modify-Write
This command is used in combination with the End command. Once the Read-Modify-Write command is entered, the
column address is incremented by 1 only by the display data write command but not incremented by the display data read
command. This status is kept until the End command is entered.
When the End command is entered, the column address is returned to the column address when the Read-Modify-Write
command is entered. This function can reduce the load of MPU when it repeatedly changes data of the specific display
area such as a blinking cursor.
* Any command other than data read and write can be used during the Read-Modify-Write mode. However, the Column
Sequence when the cursor is displayed
Rev. 1.0
Address Set command cannot be used.
A
0
0
RD
1
R/W
WR
0
D
1
7
D
1
6
NO
D
1
Column address set
5
Page address set
Read/modify/write
Dummy read
End of change
EPSON
Data read
Data write
D
0
End
4
YES
D
0
3
D
0
2
D
0
1
D
0
0
S1D15400 Series
E0H
6–17