AN2710 datasheet(23/30 Pages) STMICROELECTRONICS

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AN2710

Recommended configuration sequence

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4.4

From output open drain

If the port is set to output open drain, use the following sequences to change modes.

4.5

From input/output

if the port is set to Input/Output, use the following sequences to change modes.

Table 22.

Output open drain to analog input

PC2 - 0

Analog input

PC1 - 0

No change

PC0 - 0

No change

Table 23.

Output open drain to input

PC2 - 0

Analog input

PC1 - 0

No change

PC0 - 1

Input

Table 24.

Output open drain to Input pull-up/pull-down

PC2 - 0

Analog Input

PC1 - 1

Reserved/Input(1)

Reserved for STR73x only

PC0 - 1

Input/Output

Table 25.

Output open drain to output push-pull

PC2 - 1

No change

PC1 - 0

No change

PC0 - 1

Output push-pull

Table 26.

Output open drain to alternate function open drain

PC2 - 1

No change

PC1 - 1

Alternate function push-pull

PC0 - 0

No change

Table 27.

Output open drain to alternate function push-pull

PC2 - 1

No change

PC1 - 1

Alternate function open drain

PC0 - 1

Alternate function push-pull

Table 28.

Input pull-up/pull-down to analog input

PC2 - 0

No change

PC1 - 0

Input

PC0 - 0

Analog input

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