SC802B datasheet(11/15 Pages) ETC2

11 / 15 page

SC802B

VER2.1

AKIHABARA INC.

Page 11 of 11

c.7) Set Character Generator RAM Address

R/W

It sets character generator RAM address (aaaaaa)2 to the address counter. Character generator RAM data can read or

write after this setting.

c.8) Set Display Data RAM Address

R/W

It sets display data RAM address (aaaaaaa)2 to the address counter.

Display data RAM can read or write after this setting.

In one-line display (N = 0), (aaaaaaa)2; (OO)16 - (4F)16

In two-line display (N = 1), (aaaaaaa)2: (00)16 - (27)16,gfor the first line,

(aaaaaaa)2: (40)16 - (67)16,gfor the second line.

c.9) Read Busy Flag and Address

R/W

When (BF = 1) indicates that the system is busy now, it will not accept any instruction until no busy (BF = 0). At the

same time, the address counter content’s (aaaaaaa)2; is read out.

c.10) Write Data to Character Generator RAM or Display Data RAM

R/W

It writes data (dddddddd)2 to character generator RAM or display data RAM.

c.11) Read Data from Character Generator RAM or Display Data RAM

R/W

It reads data (dddddddd)2 from character generator RAM or display data RAM. To get the correct data readout is shown

below:

(ⅰ)Set the address of the character generator RAM or display data RAM or shift the cursor instruction.

(ii) Send the “Read “instruction.

SC802B датащи(PDF) 11 Page - List of Unclassifed Manufacturers