PSD4235G2 datasheet(15/89 Pages) STMICROELECTRONICS

15 / 89 page

15/89

PSD4235G2

All the registers of the PSD are included here, for

reference. Detailed descriptions of these registers

can be found in the following sections.

Table 7. Data-In Registers – Ports A, B, C, D, E, F, G

Note: Bit Definitions (Read-only registers):

Read Port pin status when Port is in MCU I/O input mode.

Table 8. Data-Out Registers – Ports A, B, C, D, E, F, G

Note: Bit Definitions:

Latched data for output to Port pin when pin is configured in MCU I/O output mode.

Table 9. Direction Registers – Ports A, B, C, D, E, F, G

Note: Bit Definitions:

Port pin 0 = Port pin is configured in Input mode (default).

Port pin 1 = Port pin is configured in Output mode.

Table 10. Control Registers – Ports E, F, G

Note: Bit Definitions:

Port pin 0 = Port pin is configured in MCU I/O mode (default).

Port pin 1 = Port pin is configured in Latched Address Out mode.

Table 11. Drive Registers – Ports A, B, D, E, G

Note: Bit Definitions:

Port pin 0 = Port pin is configured for CMOS Output driver (default).

Port pin 1 = Port pin is configured for Open Drain output driver.

Table 12. Drive Registers – Ports C, F

Note: Bit Definitions:

Port pin 0 = Port pin is configured for CMOS Output driver (default).

Port pin 1 = Port pin is configured in Slew Rate mode.

Bit 7

Bit 6

Bit 5

Bit 4

Bit 3

Bit 2

Bit 1

Bit 0

Port pin 7

Port pin 6

Port pin 5

Port pin 4

Port pin 3

Port pin 2

Port pin 1

Port pin 0

Bit 7

Bit 6

Bit 5

Bit 4

Bit 3

Bit 2

Bit 1

Bit 0

Port pin 7

Port pin 6

Port pin 5

Port pin 4

Port pin 3

Port pin 2

Port pin 1

Port pin 0

Bit 7

Bit 6

Bit 5

Bit 4

Bit 3

Bit 2

Bit 1

Bit 0

Port pin 7

Port pin 6

Port pin 5

Port pin 4

Port pin 3

Port pin 2

Port pin 1

Port pin 0

Bit 7

Bit 6

Bit 5

Bit 4

Bit 3

Bit 2

Bit 1

Bit 0

Port pin 7

Port pin 6

Port pin 5

Port pin 4

Port pin 3

Port pin 2

Port pin 1

Port pin 0

Bit 7

Bit 6

Bit 5

Bit 4

Bit 3

Bit 2

Bit 1

Bit 0

Port pin 7

Port pin 6

Port pin 5

Port pin 4

Port pin 3

Port pin 2

Port pin 1

Port pin 0

Bit 7

Bit 6

Bit 5

Bit 4

Bit 3

Bit 2

Bit 1

Bit 0

Port pin 7

Port pin 6

Port pin 5

Port pin 4

Port pin 3

Port pin 2

Port pin 1

Port pin 0

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