SSD1815T1R Ver la hoja de datos (PDF) - Solomon Systech

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SSD1815T1R

LCD Segment / Common Driver with Controller for Character Display System

Solomon Systech  

Bit Pattern

Read Command

(D/C=0, R/W(WR)=1, E(RD)=0)

D7D6D5D4D3D2D1D0

Status Register Read

(Data Read Back from the

driver)

Comment

D7=0: indicates an internal operation is completed.

D7=1: indicates an internal operation is in progress.

D6=0: indicates reverse segment mapping with column address

D6=1: indicates normal segment mapping with column address

D5=0: indicates the display is ON

D5=1: indicates the display is OFF

D4=0: initialization is not in progress

D4=1: initialization is in progress after RES or software reset

D3D2D1D0 = 1010, these 4-bit is fixed to 1010 which could be used

to identify as Solomon Systech Device.

EXTENDED COMMAND TABLE

Bit Pattern

Command

10101000

00X5X4X3X2X1X0

10101001

X7X6X5X4X3X2X1X0

X5X4X3X2X1X0: Set Multiplex Ratio

X1X0: Set Bias Ratio

Comment

To select multiplex ratio N from 2 to 65 [Included Icon Line].

N = X5X4X3X2X1X0 + 2, eg. N = 111111b + 2 = 65 (POR)

X1X0 = 00: 1/8, 1/6

X1X0 = 01: 1/6, 1/5

X1X0 = 10: 1/9, 1/7 (POR)

X1X0 = 11: Prohibited

X4X3X2: Set TC Value

X4X3X2 = 000: -0.01%/C (TC0, POR)

X4X3X2 = 010: -0.10%/C (TC2)

X4X3X2 = 100: -0.18%/C (TC4)

X4X3X2 = 111: -0.25%/C (TC7)

X4X3X2 = 001, 011, 101, 110: Reserved

1010101X0

11010010

0X6X500010

11010011

00X5X4X3X2X1X0

X7X6X5: Modify Osc. Freq.

Increase the value of X7X6X5 will increase the oscillator frequency

and vice versa. This command is not recommended to be used.

X7X6X5 = 011(POR)

X0: Set 1/4 Bias Ratio

X0 = 0: use Normal Setting (POR)

X0 = 1: fixed at 1/4 Bias

X6X5: Set Total Frame Phases

The On/Off of the Static Icon is given by 3 phases/1 phase overlap-

ping of the M and MSTAT signals. This command set how many

phases of dividing the M/MSTAT signals for each frame.

The more the phases, the less the overlapping and thus the lower

the effective driving voltage.

X6X5 = 00: 3 phases

X6X5 = 01: 5 phases

X6X5 = 10: 7 phases (POR)

X6X5 = 11: 16 phases

X5X4X3X2X1X0: Set Display Offset

After POR, X5X4X3X2X1X0 = 0

(for mux ratio has been After setting mux ratio less than 64, data will be displayed at Center

set less than 64 only) of matrix. See Table 1.

To move display towards Row 0 by L, X5X4X3X2X1X0 = L

To move display away from Row 0 by L, X5X4X3X2X1X0 = 64-L

Note: max. value of L = (64 - display mux)/2

Note: Patterns other than that given in Command Table and Extended Command Table are prohibited to enter to the chip

as a command. Otherwise, unexpected result will occurs.

SOLOMON

REV 1.5

03/2000

SSD1815

15

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