
S1D15G10D08B000
Rev. 1.0
EPSON
35
(12) 256-color position set (RGBSET8) Command: 1 Parameter: 0
When turning on 256-color display (8 gray-scale), this command allows you to choose colors to represent each of red,
green and blue from 4096 colors.
Data (Red and Green: 3 bits and Blue: 2 bits) to be written from the MPU to the DDRAM are converted to 4-bit data
before the write operation takes place. When reading data from the DDRAM, data on red and green are converted to
3 bits and that on blue are converted to 2 bits before the output.
(13) Memory write (RAMWR) Command: 1 Parameter: Numbers of data written
When MPU writes data to the display memory, this command turns on the data entry mode. Entering this command
always sets the page and column addresses at the start address. You can rewrite contents of the display data RAM by
entering data succeeding to this command. At the same time, this operation increments the page or column address as
applicable. The write mode is automatically cancelled if any other command is entered.
1
8-bit bus
A0
RD
WR
D7
D6
D5
D4
Command
0
1
0
0
1
0
1
Parameter
1
1
0
Data to be written
2
16-bit bus
Command name
A0 RD WR
D15 D14D13 D12 D11D10
D9 D8 D7 D6 D5 D4 D3 D2 D1 D0
Command
0
1
0
*
*
*
*
*
Data to be written
1
1
0
(14) Memory read (RAMRD) Command: 1 Parameter: Numbers of data read
When MPU reads data from the display memory, this command turns on the data read mode. Entering this command
always sets the page and column addresses at the start address. After entering this command, you can read contents of
the display data RAM. At the same time, this operation increments the page or column address as applicable. The data
read mode is automatically cancelled if any other command is entered.
1
8-bit bus
A0
RD
WR
D7
D6
D5
D4
Command
0
1
0
0
1
0
1
Parameter
1
0
1
Data to be read
2
16-bit bus
Command name
A0 RD WR
D15 D14D13 D12 D11D10
D9 D8 D7 D6 D5 D4 D3 D2 D1 D0
Command
0
1
0
*
*
*
*
*
Data to be read
1
0
1
D3
1
D2
1
D1
0
D0
0
Function
––
Data to be written
Function
Memory write
Write data
*
Data to be written
*
*
0
1
0
1
1
1
0
0
D3
1
D2
1
D1
0
D0
1
Function
––
Data to be read
Function
Memory read
Read data
*
Data to be read
*
*
0
1
0
1
1
1
0
1
A0
0
1
RD
1
1
WR
0
0
D7
1
*
D6
1
*
D5
0
*
D4
0
*
D3
1
P13 P12 P11 P10 Intermediate red tone 000
D2
1
D1
1
D0
0
Function
––
Command
Parameter1 (P1)
Parameter4 (P8)
Parameter9 (P9)
1
1
1
1
0
0
*
*
*
*
*
*
*
*
P83 P82 P81 P80 Intermediate red tone 111
P93 P92 P91 P90 Intermediate green tone 000
Parameter16 (P16)
Parameter17 (P17)
1
1
1
1
0
0
*
*
*
*
*
*
*
*
P163 P162 P161 P160
Intermediate green tone 111
P173 P172 P171 P170
Intermediate blue tone 00
Parameter20 (P20)
1
1
0
*
*
*
*
P203 P202 P201 P200
Intermediate blue tone 11