ATSAM3303 datasheet(6/25 Pages) ATMEL

6 / 25 page

ATSAM3303

6091A–DRMSD–07/04

Pinout

Pin Description

•

Identical sharing number indicates multifunction pins.

•

Pd indicates a pin with built-in pull-down resistor.

•

Pu indicates a pin with built-in pull-up resistor.

Table 2. Pinout by Pin Name

Pin Name

Pin Number

Type

Sharing

Description

GND

9, 22, 30, 41, 56, 70,

75, 87, 97

PWR

Digital ground. All these pins should be returned to a ground plane

VC18

20, 47, 73, 99

PWR

Core power. All these pins should be returned to nominal 1.8V or to

PWROUT if the built-in power switch is used.

VC33

13, 50, 83

PWR

Periphery power. All these pins should be returned to nominal 3.3V.

PWRIN

PWR

Power switch input; should be returned to nominal 1.8V even if the

power switch is not used

PWROUT

PWR

Power switch output; should be connected to all VC18 pins if the power

switch is used

D7 - D0

96, 95, 91, 90, 82,

81, 77, 76

I/O

Slave 8-bit interface data. Output if CS and RD are low (read from chip),

input if CS and WR are low (write to chip). Type of data defined by A0

input.

I/O7 - I/O0

96, 95, 91, 90, 82,

81, 77, 76

I/O

SmartMedia data or other peripheral data

P0.7 - P0.0

96, 95, 91, 90, 82,

81, 77, 76

I/O

General-purpose I/O; can be programmed individually as input or

output

CLAD3 - 0

96, 95, 91, 90

Optional bit clocks for digital audio input. Used for sampling rate

conversion, for external incoming digital audio such as AES/BEU or

S/Pdif.

WSAD3 - 0

82, 81, 77, 76

Optional word selects for digital audio input. Used for sampling rate

conversion, for external incoming digital audio such as AES/BEU or

S/Pdif.

Slave 8-bit interface address. Indicates data/status or data/ctrl transfer

type (CS/ RD low or CS/WR low)

SMPD

SmartMedia presence detect

P0.10

General-purpose input pin

SCLK

Serial slave synchronous interface input clock

100

Slave 8-bit interface chip select, active low

P0.11

100

General-purpose input pin

SYNC

100

Serial slave synchronous interface input sync signal

Slave 8-bit interface write, active low. D7 - D0 data is sampled by chip

on WR rising edge if CS is low

SMC

SmartMedia configuration. This pin is sensed after power-up. If found

low, it is assumed that a SmartMedia connector is present. The built-in

firmware will wait for SmartMedia SMPD.

P0.12

General-purpose input pin

ATSAM3303 Datasheet(PDF) 6 Page - ATMEL Corporation

ATSAM3303 Datasheet(HTML) 6 Page - ATMEL Corporation

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

Datasheet Download

Link URL