STE2002DIE1 STMicroelectronics, STE2002DIE1 Datasheet - Page 24
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STE2002DIE1
Manufacturer Part Number
STE2002DIE1
Description
81 x 128 Single Chip LCD Controller/Driver
Manufacturer
STMicroelectronics
Datasheet
1.STE2002DIE1.pdf
(51 pages)
- Current page: 24 of 51
- Download datasheet (491Kb)
STE2002
Figure 35. Reading Sequence
READING SEQUENCE
Write a "00000000" Instruction
SOUT Buffer becomes active (Low Impedence)
Source 8 pulses on SCLK and
1
Read the I2C Address or Status Byte On SOUT
SOUT Buffer Configured in High Impedence
END OF READING SEQUENCE
note: 1) these data are not read by the display Diver
2) SDIN and SOUT can be short circuited if the processor can configure
serial output buffers in high impedence during data read .
LR0078
Parallel Interface
The STE2002 parallel Interface is a bidirectional link between the display driver and the application supervisor.
It consists of eleven lines: eight data lines (from DB7 to DB0) and three control lines. The control lines are: en-
able (E) for data latch, PD/C for mode selection and R/W for reading or writing.
The data lines and the control line values are internally latched on E rising edge (fig. 50).
When the parallel interface is selected, if R/W line is set to “one”, D0-D7 lines are configured as output drivers
2
(low impedence) and it is possible to read the driver I
C address (Fig. 51)
24/51
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