S1D1 Epson Electronics America, Inc., S1D1 Datasheet - Page 399

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

S1D15705 Series
10–40
(5) Status Read
(6) Display Data Write
This command writes 8-bit data to the specified address of the display data RAM. Since the column address is
automatically incremented by 1 after the data is written, the MPU can successively write the display data.
(7) Display Data Read
This command reads the 8-bit data in the specified address of the display data RAM. Since the column address is
automatically incremented by 1 after the data is written, the MPU can successively read the data consisting of multiple
words.
Besides, immediately after the column address is set, dummy read is required one time. For details, see the description
of the Display data RAM and internal register access of “Function Description”.
When using the serial interface, the display cannot be read.
ON/OFF
A0 RD WR D7 D6 D5 D4 D3 D2 D1 D0
A0 RD WR D7 D6 D5 D4 D3 D2 D1 D0
RESET
A0 RD WR
1
1
BUSY
0
ADC
E R/W
E R/W
1
0
E R/W
0
The command cannot be accepted until BUSY=0 is reached. However, if the cycle time is
satisfied, the command needs not be checked.
Indicates the correspondence relationship between the column address and segment driver.
When BUSY=1, indicates an internal operation being done or reset.
ON/OFF: Specifies display ON/OFF
Indicates the RES signal or that initial setting is being done using the reset command.
0
1
1
BUSY ADC ON/OFF RESET
0: Reversal (column address 199–n
1: Normal rotation (column address n
0: Display ON
1: Display OFF
0: Operating state
1: Resetting
D7
(Reverses the polarity of ADC command.)
(Reverses the polarity of display ON/OFF command.)
D6
Write data
Read data
D5
D4
EPSON
D3 D2 D1 D0
0
0
SEG n)
SEG n)
0
0
Rev. 3.1a