SEC2410 datasheet(19/283 Pages) MICROCHIP

19 / 283 page

 2013 - 2014 Microchip Technology Inc.

DS00001587C-page 19

SEC2410/SEC4410

SD2_D6/

GPIO24

I/O12PU

SD2 Data 6

The SD2_D[7:0] pins are bi-directional data signals that

have weak pull-up resistors.

SD2_CLK/

GPIO26

O12

SD2 Clock

An output clock signal to SD2/MMC device, where the

clock frequency is software configurable.

VDD33

3.3 V Power

GPIO9/

CRD_PWR

I/O200

Card Power 2 Drive

The card power drive of 3.3 V at 200 mA.

SD2_D5/

GPIO23

I/O12PU

SD2 Data 5

The SD2_D[7:0] pins are bi-directional data signals that

have weak pull-up resistors.

SD2_CMD/

GPIO17

I/O12PU

SD2 Command

A bi-directional signal that connects to the CMD signal of

the SD2/MMC device and has a weak internal pull-up

resistor.

SD2_D4/

GPIO22

I/O12PU

SD2 Data 4

The SD2_D[7:0] pins are bi-directional data signals that

have weak pull-up resistors.

SEL25M_CLKDRIVE

Select 25 MHz Clock

This pin selects the 25 MHz OSC as the clock source.

: clock source is 24 Hz XTAL

: clock source is 25MHz OSC on XTAL1/CLKIN

(XTAL2 is not used)

When present on a package this pin MUST be tied high

or tied low (direct connection 3.3 V or ground is

acceptable).

There is no internal pull-up or pull-down.

TRACECLK

O12

Debug Trace Clock

The clock out of the ETM trace module when debugging

is enabled.

SD2_D3/

GPIO21

I/O12PU

SD2 Data 3

The SD2_D[7:0] pins are bi-directional data signals that

have weak pull-up resistors.

SD2_D2/

GPIO20

I/O12PU

SD2 Data 2

The SD2_D[7:0] pins are bi-directional data signals that

have weak pull-up resistors.

VDD33

3.3 V Power

GPIO6

(SD1_WP)

I/O12

SD1 Write Protect Detection

The secure digital card mechanical write protect

detection pin.

GPIO15

(SD1_nCD)

IPU

SD1 Card Detect

This secure digital card detection pin.

SD1_D1

I/O12PU

SD1 Data 1

The SD1_D[7:0] pins are bi-directional data signals that

have weak pull-up resistors.

TABLE 3-3:

SEC2410 PIN DESCRIPTIONS (CONTINUED)

Name

Buffer type

Description

64-QFN 72-QFN

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