UPD7225 datasheet(28/50 Pages) RENESAS

28 / 50 page

Data Sheet S14308EJ6V1DS

µµµµPD7225

8.8 DISPLAY OFF

When this command is executed, the relationship of all common drive signals and segment drive signals enters

the non-select state. As a result, the display is turned off. Transferring display data from the data memory to the

display data latch is not affected by this command execution.

8.9 WITH SEGMENT DECODER

After this command is executed, input data is sent to the segment decoder, and the decoded code is written to the

data memory.

8.10 WITHOUT SEGMENT DECODER

After this command is executed, input data is written to the data memory without going through the segment

decoder.

8.11 LOAD DATA POINTER

D4D3 D2D1 D0

This command sets immediate data D4-D0 to the data pointer.

8.12 WRITE DATA MEMORY

D3 D2 D1 D0

This command stores immediate data D3-D0 to the data memory addressed by the data pointer, and increments

(+1) the contents of the data pointer.

8.13 OR DATA MEMORY

D3 D2 D1 D0

This command ORs the contents of the data memory addressed by the data pointer and immediate data D3-D0,

and stores the result to the data memory, then increments (+1) the contents of the data pointer.

UPD7225 Datasheet(PDF) 28 Page - Renesas Technology Corp