STE2004S Datasheet, PDF (39/79 Pages) STMicroelectronics – 102 x 65 single-chip LCD controller/driver

STE2004S
Bus interfaces
It is possible to short circuit SDOUT and SDIN, and read the I²C address or status byte
without any additional line.
Figure 41. 3-lines serial bus protocol - one byte transmission
CS
SCLK
SDIN
SD/C
MSB
LSB
LR0073
Figure 42. 3-lines serial bus protocol - several byte transmission
CS
SCLK
SDIN
D/C
DB7
DB6
DB5
DB4
DB3
DB2
DB1
DB0
D/C
DB7
DB6
DB5
DB4
DB3
DB2
DB1
DB0
D/C
DB7
DB6
LR0074
Figure 43. 3-lines serial interface protocol in Reading Mode
CS
SCLK
SDIN
SDOUT
SD/C DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0 ^{Don't Don't Don't Don't Don't Don't Don't Don't}
Care Care Care Care Care Care Care Care
High-Z
High-Z
DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0
ID-Number
DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0
STATUS BYTE
Command Write
DATA Read
High-Z
High-Z
LR0075
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