SAM4SD16B datasheet(11/67 Pages) ATMEL

11 / 67 page

11100BS–ATARM–31-Jul-12

SAM4S Series [Preliminary]

Note:

1. Schmitt Triggers can be disabled through PIO registers.

2. Some PIO lines are shared with System I/Os.

3. Refer to USB Section of the product Electrical Characteristics for information on Pull-down value in USB Mode.

4. See “Typical Powering Schematics” Section for restrictions on voltage range of Analog Cells.

5. TDO pin is set in input mode when the Cortex-M4 Core is not in debug mode. Thus the internal pull-up corresponding to this

PIO line must be enabled to avoid current consumption due to floating input.

Two-Wire Interface- TWI

TWDx

TWIx Two-wire Serial Data

I/O

TWCKx

TWIx Two-wire Serial Clock

I/O

Analog

ADVREF

ADC, DAC and Analog Comparator

Reference

Analog

12-bit Analog-to-Digital Converter - ADC

AD0-AD14

Analog Inputs

Analog,

Digital

ADTRG

ADC Trigger

Input

VDDIO

12-bit Digital-to-Analog Converter - DAC

DAC0 - DAC1

Analog output

Analog,

Digital

DACTRG

DAC Trigger

Input

VDDIO

Fast Flash Programming Interface - FFPI

PGMEN0-

PGMEN2

Programming Enabling

Input

VDDIO

PGMM0-PGMM3

Programming Mode

Input

VDDIO

PGMD0-PGMD15

Programming Data

I/O

PGMRDY

Programming Ready

Output

High

PGMNVALID

Data Direction

Output

Low

PGMNOE

Programming Read

Input

Low

PGMCK

Programming Clock

Input

PGMNCMD

Programming Command

Input

Low

USB Full Speed Device

DDM

USB Full Speed Data -

Analog,

Digital

VDDIO

Reset State:

- USB Mode

- Internal Pull-down

(3)

DDP

USB Full Speed Data +

Table 3-1.

Signal Description List (Continued)

Signal Name

Function

Type

Active

Level

Voltage

reference

Comments

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