STFPC311 datasheet(20/39 Pages) STMICROELECTRONICS

20 / 39 page

6 Commands

STFPC311

20/39

When the application is powered-up, the normal operation mode and address increment mode

is set with the default display memory address set to 00H. In the auto-increment address mode,

the address command is sent once, followed by the data bytes.

Alternatively, the data command can be sent, followed by the data bytes. In this case, when new

display data is to be written, the last value of the address will be used and then incremented.

Upon reaching the last display memory address, the address jumps to 00H.

For fixed address mode, the address command has to be sent, followed by the display data.

When next byte of data is to be written, the address command has to be sent again before the

new display data byte.

For RC-5 data reception (after the photodiode), a binary 1 is represented by a high-to-low

transition, and a binary 0 is represented by a low-to-high transition. For RC-6 (Mode 0) data

reception, a binary 1 is represented by a low-to-high transition, and a binary 0 is represented by

a high-to-low transition. Whenever Bit 5 is a ‘1’, the watchdog timer is reset.

6.3

Address setting command

This command sets an address of the display memory. If address 30H or higher is set, the data

is ignored until a correct address is set.

Figure 16. STFPC311 Address Setting Command Order

6.4

Display control and hotkey setting command

When the application is powered-up, the 1/16-pulse width is set and the display is turned OFF.

See Figure 17 and Figure 4. All hot keys are disabled.

Figure 17. STFPC311 Display control and hot key setting command order

STFPC311 Datasheet(PDF) 20 Page - STMicroelectronics