R

Hardware Schematic Diagram

Table C-6:Display Instructions (Continued)

Instruction

RS

RW

DB7

DB6

DB5

DB4

DB3

DB2

DB1

DB0

 

 

 

 

 

 

 

 

 

 

 

Set page address

0

0

1

0

1

1

P3

P2

P1

P0

 

 

 

 

 

 

 

 

 

 

 

This instruction sets the address of the display data page. Any RAM data bit can be accessed when its page address and column address are specified. Changing the Page Address does not affect the display status.

 

 

 

 

P3

P2

P1

P0

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

0

0

0

0

page 0

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

0

0

0

1

page 1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

..

..

..

..

...

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

0

1

1

1

page 7

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1

0

0

0

page 8

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Set column address MSB

0

0

0

0

0

1

Y7

Y6

Y5

Y4

 

 

 

 

 

 

 

 

 

 

 

Set column address LSB

0

0

0

0

0

0

Y3

Y2

Y1

Y0

 

 

 

 

 

 

 

 

 

 

 

This instruction sets the address of the display data RAM. When a read or write to or from the display data RAM occurs, the addresses are automatically increased.

 

 

Y7

Y6

Y5

Y4

Y3

Y2

Y1

Y0

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

0

0

0

0

0

0

0

0

Col

 

 

 

Addr 0

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

0

0

0

0

0

0

0

1

Col

 

 

 

Addr 1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

..

..

..

..

..

..

..

..

...

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Col

 

 

 

1

1

1

1

1

1

1

0

Addr

 

 

 

 

 

 

 

 

 

 

 

130

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Col

 

 

 

1

1

1

1

1

1

1

1

Addr

 

 

 

 

 

 

 

 

 

 

 

131

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ADC select

 

0

0

1

0

1

0

0

0

0

ADC

 

 

 

 

 

 

 

 

 

 

 

This instruction changes the relationship between RAM column address and segment driver.

 

 

 

 

ADC = 0, SEG1 --> SEG132

default mode

 

 

 

 

 

 

 

 

ADC = 1, SEG132 --> SEG1

 

 

 

 

 

 

 

 

 

 

 

Virtex-5 FPGA ML561 User Guide

www.xilinx.com

131

UG199 (v1.2) April 19, 2008

Page 131
Image 131
Xilinx ML561 manual Hardware Schematic Diagram Table C-6Display Instructions, Set page address