TPS25750_V01 datasheet(41/74 Pages) TI

41 / 74 page

Figure 9-23. BC1.2 Hardware Components (External for DRP)

9.3.8 Digital Interfaces

The TPS25750 contains several different digital interfaces which can be used for communicating with other

devices. The available interfaces include one I2C Master, one I2C Slave and additional GPIOs.

9.3.8.1 General GPIO

GPIOn pins can be mapped to USB Type-C, USB PD, and application-specific events to control other ICs,

interrupt a host processor, or receive input from another IC. This buffer is configurable to be a push-pull output, a

weak push-pull, or open drain output. When configured as an input, the signal can be a de-glitched digital input .

The push-pull output is a simple CMOS output with independent pull-down control allowing open-drain

connections. The weak push-pull is also a CMOS output, but with GPIO_RPU resistance in series with the drain.

The supply voltage to the output buffer is LDO_3V3 and LDO_1V5 to the input buffer. When interfacing with non

3.3-V I/O devices the output buffer may be configured as an open drain output and an external pull-up resistor

attached to the GPIO pin. The pull-up and pull-down output drivers are independently controlled from the input

and are enabled or disabled via application code in the digital core.

Table 9-2. GPIO Functionality Table

Pin Name

Type

Special Functionality

GPIO0

I/O

General-purpose input or output

GPIO1

I/O

General-purpose input or output

GPIO2

I/O

General-purpose input or output

GPIO3

I/O

General-purpose input or output

GPIO4

I/O

D+, or used as a general-purpose input or output

GPIO5

I/O

D-, or used as a general-purpose input or output

GPIO6

I/O

General-purpose input or output

GPIO7

I/O

General-purpose input or output

I2Cs_IRQ(GPIO10)

IRQ for optional I2Cs, or used as a general-purpose output

GPIO11

General-purpose output

I2Cm_IRQ(GPIO12)

IRQ for I2Cm, or used as a general-purpose input

9.3.8.2 I2C Interface

The TPS25750 features two I2C interfaces that uses an I2C I/O driver like the one shown in Figure 9-24. This I/O

consists of an open-drain output and an input comparator with de-glitching.

www.ti.com

TPS25750

SLVSFR7A – JULY 2020 – REVISED NOVEMBER 2020

Submit Document Feedback

Product Folder Links: TPS25750

TPS25750 Folha de dados(PDF) 41 Page - Texas Instruments

TPS25750 Folha de dados(HTML) 41 Page - Texas Instruments

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74

Folha de dados Download

Ligação URL