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STE2001

Parallel Interface

The STE2001 parallel Interface is a unidirectional link between the display driver and the application supervisor.

It consists of ten lines: eight data lines (from DB7 to DB0) and two control lines. The control lines are: enable

(E) for data latch and PD/C for mode selection.

The data lines and the control line values are internally latched on E rising edge (fig. 23).

Figure 23. Parallel interface timing

Table 1. Instruction Set

Instruction

D/C

R/W

Description

B7

B6

B5

B4

B3

B2

B1

B0

H=0 or H=1

NOP

000

0000000

No Operation

Function Set

0

0

0

0

1

MX

MY

PD

V

H

Power Down Management; Entry

Mode; Extended Instruction Set

Read Status Byte

0

1

PD

TRS

BRS

D

E

MX

MY

DO

Write Data

1

0

D7

D6

D5

D4

D3

D2

D1

D0

Writes data to RAM

H=0

Memory Blank

0

0

0

0000001

Starts Memory Blank Procedure

Scroll

0

0

0

000001

DIR

Scrolls by one Row UP or DOWN

000

000010

PRS

Display Control

0

0

0

0001

D

0

E

Select Display Configuration

Set CP Factor

0

0

0

00100

S1

S0

Charge Pump Multiplication Facto

r

Set RAM Y

0

0

0

1

0

0

Y3

Y2

Y1

Y0

Set Horizontal (Y) RAM Address

Set RAM X

0

0

1

X6

X5

X4

X3

X2

X1

X0

Set Vertical (X) RAM Address

H=1

Checker Board

0

0

0

0000001

Starts Checker Board Procedure

Multiplex Select

0

0

0

000001

MUX

Selects MUX factor

TC Select

0

0

0

00001

Output Address

0

0

0

0001

DO

TRS

BRS

Set Row Order on Output Pads

Bias Ratios

000

0010

BS2 BS1 BS0

Set desired Bias Ratios

Reserved

0

0

0

1

X

X

X

X

X

X

Not to be used

001

OP6

OP5

OP4

OP3

OP2

OP1

OP0

PD/C

DB0-DB7

E

D00IN1162

RES