STE2002 datasheet(17/51 Pages) STMICROELECTRONICS

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STE2002

Figure 28. Row Drivers vs. LCD Panel Interconnection in MUX33 Mode

Instruction Set

Two different instructions formats are provided:

- With D/C set to LOW

commands are sent to the Control circuitry.

- With D/C set to HIGH

the Data RAM is addressed.

Two different instruction set are embedded: the STE2001-like instruction set and the extended instruction

set. To select the STE2001-like instruction set the EXT pad has to be connected to a logic LOW (connect

to VSS). To select the extended instruction the EXT pad has to be connected to a logic HIGH (connect to

VDD1).

The instructions have the syntax summarized in Table 1 (basic-set) and Table 2 (extended set)

Reset (RES)

At power-on, all internal registers are configured with the default value. The RAM content is not defined.

A Reset pulse on RES pad (active low) re-initialize the internal registers content (see Tables 3,4,5,&6).

Applying a reset pulse, every on-going communication with the host controller is interrupted. After the

power-on, the Software Reset instruction can be used to re-load the reset configuration into the internal

registers

The Default configurations is: .

A MEMORY BLANK instruction can be executed to clear the RAM content.

33x128

MUX 33Mode

COLUMN DRIVERS

ROW DRIVERS

R43

R42

R41

R45

R44

R40

R46

R47

R51

R50

R49

R53

R52

R48

R54

R55

R59

R58

R57

R61

R60

R56

R62

R63

R64

R 2

R 1

R 0

R 4

R 3

ICON

R 5

R 6

R10

R 9

R 8

R12

R11

R 7

R13

R14

R18

R17

R16

R20

R19

R15

R21

R22

R26

R25

R24

R28

R27

R23

R29

R30

R31

STE2002

R34

R33

R32

R68

R67

R66

R70

R69

R65

R71

R72

R73

R74

R75

LR0106

ICON

- Horizontal addressing (V = 0)

- Normal instruction set (H[1:0] = 0)

- Normal display (MX = MY = 0)

- Display blank (E = D = 0)

- Address counter X[6: 0] = 0 and Y[4: 0] = 0

- Temperature coefficient (TC[1: 0] = 0)

- Bias system (BS[2: 0] = 0)

- Multiplexing Ratio (M[1:0]=0)

- Frame Rate (FR[1:0]=”75Hz”)

- Power Down (PD = 1)

- Dual Partial Display Disabled (PE=0)

- VOP=0

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