STE2004SDIE2 STMicroelectronics, STE2004SDIE2 Datasheet - Page 37

• Manufacturer Part Number: STE2004SDIE2
• Description: 102 x 65 single-chip LCD controller/driver
• Manufacturer: STMicroelectronics

STE2004S
Throughout SDOUT can be read the driver I
command sequence that allows to read I
Figure 39.
If the R bit is set to logic 0 and D/C=0, the I
1 and D/C=0, the the I
and during data write.
It is possible to short circuit SDOUT and SDIN and read the I
without any additional line.
Figure 38. 3-lines serial interface protocol in writing mode
Figure 39. 3-lines SPI interface protocol in reading mode
WRITE MODE
Co
SCLK
SDIN
SDOUT
1
0
CS
0
CONTROL BYTE
CONTROL BYTE
0
1
Control Byte
Control Byte
Control Byte
COMMAND WORD
LAST
LAST
and
Co=1
DB7
"Command"
Figure 40.
D/C=0
DB6
DATA Byte
DATA Byte
DATA Byte
DB5
"Read"
R/W=1
2
Command Write
C slave address is read. SDOUT is in high impedance in steady state
DB4
MSB........LSB
MSB........LSB
.
N> 0 BYTE
N> 0 BYTE
High-Z
High-Z
DB3
Co
0
CONTROL BYTE
DB2
Control Byte
DATA Byte
DATA Byte
LAST
DB1
DB0
2
C slave address or the status byte is shown in
2
C slave address is read. If the R bit is set to logic
2
DB7
DB7
Don't
Care
C slave address or the status byte. The
DATA Byte
MSB........LSB
ONLY COMMANDS
ONLY DDRAM DATA
TRANSFERRED
TRANSFERRED
N> 0 BYTE
Don't
DB6
DB6
Care
DB5
DB5
Don't
Care
STATUS BYTE
ID-Number
DATA Read
DB4
DB4
Don't
Care
DB3
DB3
Don't
Care
2
C address or status byte
DB2
DB2
Don't
Care
DATA Byte = Command
DATA Byte = DDRAM Data if D/C=1
C
o
CONTROL BYTE
D
C
Don't
DB1
DB1
W
Care
R
/
0 0
LR0002
DB0
DB0
Don't
Care
H
E
[1]
H
Bus interfaces
[0]
H
High-Z
High-Z
LR0077
if D/C=0
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