PX3SE datasheet(35/54 Pages) ROCKCHIP

35 / 54 page

PX3 SE Datasheet

Rev 1.2

2.5.3 IO pin name descriptions

This sub-chapter will focus on the detailed function description of every pins based on

different interface.

Table 2-3 PX3 SE IO function description list

Interface

Pin Name

Direction

Description

Misc

XIN24M

Clock input of 24MHz crystal

XOUT24M

Clock output of 24MHz crystal

NPOR

Power on reset for chip

Interface

Pin Name

Direction

Description

Debug

TCK

JTAG interface clock input/SWD

interface clock input

TMS

I/O

JTAG interface TMS input/SWD

interface data out

Interface

Pin Name

Direction

Description

SD/MMC

Host

Controller

sdmmc_clkout

sdmmc card clock.

sdmmc_cmd

I/O

sdmmc card command output

and reponse input.

sdmmc_datai

(i=0~3)

I/O

sdmmc card data input and

output.

sdmmc_detect_n

sdmmc card detect signal, a 0

represents presence of card.

sdmmc_write_prt

sdmmc card write protect signal,

a 1 represents write is

protected.

sdmmc_rstn_out

sdmmc card reset signal

sdmmc_pwr_en

sdmmc card power-enable

control signal

Interface

Pin Name

Direction

Description

SDIO

Host

Controller

sdio_clkout

sdio card clock.

sdio_cmd

I/O

sdio card command output and

reponse input.

sdio_datai

(i=0~3)

I/O

sdio card data input and output.

sdio_detect_n

sdio card detect signal, a 0

represents presence of card.

sdio_write_prt

sdio card write protect signal, a 1

represents write is protected.

sdio_pwr_en

sdio card power-enable control

signal

sdio_int_n

sdio card interrupt indication

sdio_backend

the back-end power supply for

embedded device

Interface

Pin Name

Direction

Description

eMMC

Interface

emmc_clkout

emmc card clock.

emmc_cmd

I/O

emmc card command output and

reponse input.

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