SAM9G45 datasheet(6/55 Pages) ATMEL

Part #	SAM9G45

Description	ARM-based Embedded MPU

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Manufacturer	ATMEL [ATMEL Corporation]

Direct Link	http://www.atmel.com

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6

6438GS–ATARM–13-Jul-11

SAM9G45

PC0 - PC31

Parallel IO Controller C

I/O

(1)

Pulled-up input at reset

(100k

Ω)(3), Schmitt trigger

PD0 - PD31

Parallel IO Controller D

I/O

(1)

Pulled-up input at reset

(100k

Ω)(3), Schmitt trigger

PE0 - PE31

Parallel IO Controller E

I/O

(1)

Pulled-up input at reset

(100k

Ω)(3), Schmitt trigger

DDR Memory Interface- DDR2/SDRAM/LPDDR Controller

DDR_D0 -

DDR_D15

Data Bus

I/O

VDDIOM0

Pulled-up input at reset

DDR_A0 -

DDR_A13

Address Bus

Output

VDDIOM0

0 at reset

DDR_CLK-

#DDR_CLK

DDR differential clock input

Output

VDDIOM0

DDR_CKE

DDR Clock Enable

Output

High

VDDIOM0

DDR_CS

DDR Chip Select

Output

Low

VDDIOM0

DDR_WE

DDR Write Enable

Output

Low

VDDIOM0

DDR_RAS-

DDR_CAS

Row and Column Signal

Output

Low

VDDIOM0

DDR_DQM[0..1]

Write Data Mask

Output

VDDIOM0

DDR_DQS[0..1]

Data Strobe

Output

VDDIOM0

DDR_BA0 -

DDR_BA1

Bank Select

Output

VDDIOM0

DDR_VREF

Reference Voltage

Input

VDDIOM0

External Bus Interface - EBI

D0 -D31

Data Bus

I/O

VDDIOM1

Pulled-up input at reset

A0 - A25

Address Bus

Output

VDDIOM1

0 at reset

NWAIT

External Wait Signal

Input

Low

VDDIOM1

Static Memory Controller - SMC

NCS0 - NCS5

Chip Select Lines

Output

Low

VDDIOM1

NWR0 - NWR3

Write Signal

Output

Low

VDDIOM1

NRD

Read Signal

Output

Low

VDDIOM1

NWE

Write Enable

Output

Low

VDDIOM1

NBS0 - NBS3

Byte Mask Signal

Output

Low

VDDIOM1

CompactFlash Support

CFCE1 - CFCE2

CompactFlash Chip Enable

Output

Low

VDDIOM1

CFOE

CompactFlash Output Enable

Output

Low

VDDIOM1

CFWE

CompactFlash Write Enable

Output

Low

VDDIOM1

CFIOR

CompactFlash IO Read

Output

Low

VDDIOM1

Table 3-1.

Signal Description List (Continued)

Signal Name

Function

Type

Active

Level

Reference

Voltage

Comments

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SAM9G45 Datasheet(PDF) 6 Page - ATMEL Corporation

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