STLED316SMTR datasheet(21/33 Pages) STMICROELECTRONICS

21 / 33 page

STLED316S

Commands

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address/auto increment. The address pointer will indicate the configuration location and

write signal writes the configuration data into the respective location.

The memory block is split into two page locations. One is for the 7-segment brightness

configuration memory and the other is for the LED (discrete) configuration memory. The

configuration memory address starts from 0x00 to 0x07. The configuration page address is

“10” and “11”.

Initial Value:

Table 13.

Memory page mapping

Description:

Address 0x00; page 0x10

LSB 0 – 2

→indicates the number of digits in the display

LSB3 MSB 4

→'11' is for constant brightness control for the display

→'00' is for variable brightness control for the display

→'01' is reserved

→'10' is reserved

MSB 5 – 7

→indicates constant brightness control value for all including the LED

(discrete)

Default is constant brightness control with 14/16 pulse width (for maximum brightness).

Page 0x10 - address 0x01 to 0x03 is for the variable brightness control value for 7

segments:

Table 14.

Digit address mapping

Default is constant brightness control with 14/16 pulse width.

Page0x11 - address 0x00 to 0x03 is for the variable brightness control value for LED

(discrete)

Memory page

Address

Value

0xFB

0x00

Address

MSB

LSB

0x01

Digit 2

Digit 1

0x02

Digit 4

Digit 3

0x03

Digit 6

Digit 5

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