Xilinx ML561 manual Appendix C LCD Interface Table C-6Display Instructions, Eon

Models: ML561

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Appendix C: LCD Interface

Table C-6:Display Instructions (Continued)

R

Instruction

RS

RW

DB7

DB6

DB5

DB4

DB3

DB2

DB1

DB0

 

 

 

 

 

 

 

 

 

 

 

Reverse display ON/OFF

0

0

1

0

1

0

0

1

1

REV

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

REV

RAM bit data = '1'

RAM bit data = '0'

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

0

Pixel ON

Pixel OFF

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1

Pixel OFF

Pixel ON

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Entire display ON/OFF

0

0

1

0

1

0

0

1

0

EON

 

 

 

 

 

 

 

 

 

 

 

This instruction forces the display to be turned on regardless the contents of the display data RAM. The contents of the display data RAM are saved. This instruction has priority over reverse display.

LCD bias select

0

0

1

0

1

0

0

0

1

BIAS

 

 

 

 

 

 

 

 

 

 

 

This instruction selects the LCD bias.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Duty

Bias = 0

Bias = 1

 

 

 

 

 

 

 

 

ratio

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1/65

1/7

1/9

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Set modify-read

0

0

1

1

1

0

0

0

0

0

 

 

 

 

 

 

 

 

 

 

 

This instruction stops the automatic incrementing of the column address by a read operation. The automatic increment is still done with a write operation.

Reset modify-read

0

0

1

 

1

1

0

1

1

1

0

 

 

 

 

 

 

 

 

 

 

 

 

This instruction resets the changed modify-read to the normal.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Reset

0

0

1

 

1

1

0

0

0

1

0

 

 

 

 

 

 

 

 

 

 

 

 

This instruction resets the LCD controller registers to the default values. The instruction CANNOT initialize the LCD power supply initialized with RESETB.

 

SHL select

0

 

0

1

1

0

0

SHL

x

x

x

 

 

 

 

 

 

 

 

 

 

 

This instruction sets the COM output scanning direction.

 

 

 

 

 

 

 

SHL = 0,

COM1 ----> COM64

(default)

 

 

 

 

 

 

 

 

 

SHL = 1,

COM64 ----> COM1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Power Control

0

 

0

0

0

1

0

1

VC

VR

VF

 

 

 

 

 

 

 

 

 

 

 

 

 

This instruction selects one of the eight power circuit functions. In the case of the DisplayTech 64128EFCBC display, these must be kept at "000"

Regulator resistor select

0

0

 

0

0

1

0

0

R2

R1

R0

 

 

 

 

 

 

 

 

 

 

 

 

This instruction selects the resistor ratio Rb/Ra.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Set static indicator mode

0

0

 

1

0

1

0

1

1

0

SM

 

 

 

 

 

 

 

 

 

 

 

 

Set static indicator register

0

0

 

x

x

x

x

x

x

S1

S0

 

 

 

 

 

 

 

 

 

 

 

 

This is a two-byte instruction. The first instruction enables the second instruction. The second instruction update the contents of the static indicator register.

132

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Virtex-5 FPGA ML561 User Guide

 

 

UG199 (v1.2) April 19, 2008

Page 132
Image 132
Xilinx ML561 manual Appendix C LCD Interface Table C-6Display Instructions, Eon