AN3090 datasheet(10/19 Pages) STMICROELECTRONICS

部件名	AN3090

功能描述	Power saving and LED status detection using the STP16DPPS05 device

PDF	19 Pages

Scroll/Zoom	100%

制造商	STMICROELECTRONICS [STMicroelectronics]

网页	http://www.st.com

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10 / 19 page

Error detection feature

AN3090

10/19

Doc ID16496 Rev 1

To resume normal mode functionality, it is mandatory to apply another OE/DM2 pulse after

16 CLK pulses.

The plot in Figure 6 shows a typical example of error detection feedback. Observing the

SDO (green signal) and OE/DM2 (purple signal) it is possible to verify, respectively, the

output status and how the device returns to normal mode.

Table 1.

Output error detection sequence after OE/DM2 acquisition

CLK pulse after OE turns to high level

Output results

1st CLK rising edge

Output 16

2nd CLK rising edge

Output 15

3rd CLK rising edge

Output 14

4th CLK rising edge

Output 13

5th CLK rising edge

Output 12

6th CLK rising edge

Output 11

7th CLK rising edge

Output 10

8th CLK rising edge

Output 9

9th CLK rising edge

Output 8

10th CLK rising edge

Output 7

11th CLK rising edge

Output 6

12th CLK rising edge

Output 5

13th CLK rising edge

Output 4

14th CLK rising edge

Output 3

15th CLK rising edge

Output 2

16th CLK rising edge

Output 1

AN3090 数据表(PDF) 10 Page - STMicroelectronics

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