USB2601 datasheet(14/30 Pages) MICROCHIP

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USB2601/USB2602

DS00002119A-page 14

 2004 - 2016 Microchip Technology Inc.

System

Data In/Out

MS_D[3:2]

I/O8PD

This pin is a bi-directional data signal for the MS device.

The bi-directional data signal has an internal weak pull-

down resistor.

Card Insertion

MS_INS

IPU

This pin is the card detection signal from the MS device

to indicate, if the device is inserted.

This pin has an internally controlled weak pull-up resistor.

System CLK

MS_SCLK

This pin is an output clock signal to the MS device.

The clock frequency is software configurable.

SD INTERFACE

Data [3:0]

SD_DAT[3:0]

I/O8PU

These are bi-directional data signals.

These pins have internally controlled weak pull-up

resistors.

SD Clock

SD_CLK

This is an output clock signal to SD/MMC device.

The clock frequency is software configurable.

SD Command

SD_CMD

I/O8PU

This is a bi-directional signal that connects to the CMD

signal of SD/MMC device.

This pin has an internally controlled weak pull-up resistor.

Write Protected

SD_nWP

IPD

This pin is an input signal with an internal weak pull-

down.

This pin has an internally controlled weak pull-down

resistor.

MISC

General Purpose I/O

GPIO1

I/O8

This pin may be used either as input, edge sensitive

interrupt input, or output.

General Purpose I/O

GPIO2

I/O8

This pin may be used either as input, edge sensitive

interrupt input, or output.

General Purpose I/O

GPIO4

I/O8

This pin may be used either as input, edge sensitive

interrupt input, or output.

General Purpose I/O

GPIO5

I/O8

This pin may be used either as input, edge sensitive

interrupt input, or output.

GPIO6

IPU

This pin has an internal weak pull-up resistor that is

enabled or disabled by the state of RESET_N.

The pull-up is enabled when RESET_N is active.

The pull-up is disabled, when the RESET_N is inactive

(some clock cycles later, after the rising edge of

RESET_N).

The state of this pin is latched internally on the rising

edge of RESET_N to determine if internal or external

program memory is used.

The state latched is stored in ROMEN bit of GPIO_IN1

I/O8

After the rising edge of RESET_N, this pin may be used

as GPIO6.

When this pin is left unconnected or pulled high by a

weak pull-up resistor, the USB2601/USB2602 uses the

internal ROM for program execution.

This pin may be used either as input, edge sensitive

interrupt input, or output.

General Purpose I/O

GPIO7

I/O8

This pin may be used either as input, edge sensitive

interrupt input, or output.

Name

Symbol

Buffer Type

Description

USB2601 数据表(PDF) 14 Page - Microchip Technology

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USB2601 数据表(PDF) 14 Page - Microchip Technology

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