AT91SAM9G45(2009) Просмотр технического описания (PDF) - Atmel Corporation

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Компоненты Описание

производитель

AT91SAM9G45
(Rev.:2009)

AT91 ARM Thumb-based Microcontrollers

Atmel Corporation 

Table 3-1. Signal Description List (Continued)

Signal Name

PD0 - PD31

Function

Parallel IO Controller D

Type

I/O

Active

Level

Reference

Voltage

(1)

PE0 - PE31

Parallel IO Controller E

I/O

(1)

DDR_D0 -

DDR_D15

DDR_A0 -

DDR_A13

DDR_CLK-

#DDR_CLK

DDR_CKE

DDR_CS

DDR_WE

DDR_RAS-

DDR_CAS

DDR_DQM[0..1]

DDR_DQS[0..1]

DDR_BA0 -

DDR_BA1

DDR_VREF

D0 -D31

A0 - A25

NWAIT

NCS0 - NCS5

NWR0 - NWR3

NRD

NWE

NBS0 - NBS3

CFCE1 - CFCE2

CFOE

CFWE

CFIOR

CFIOW

CFRNW

Data Bus

DDR Memory Interface- DDR2/SDRAM/LPDDR Controller

I/O

VDDIOM0

Address Bus

Output

VDDIOM0

DDR differential clock input

Output

VDDIOM0

DDR Clock Enable

DDR Chip Select

DDR Write Enable

Output

Output

Output

High

Low

Low

VDDIOM0

VDDIOM0

VDDIOM0

Row and Column Signal

Output

Low

VDDIOM0

Write Data Mask

Data Strobe

Output

Output

VDDIOM0

VDDIOM0

Bank Select

Output

VDDIOM0

Reference Voltage

Input

External Bus Interface - EBI

Data Bus

I/O

Address Bus

Output

External Wait Signal

Input

Low

Static Memory Controller - SMC

Chip Select Lines

Output

Low

Write Signal

Output

Low

Read Signal

Output

Low

Write Enable

Output

Low

Byte Mask Signal

Output

Low

CompactFlash Support

CompactFlash Chip Enable

Output

Low

CompactFlash Output Enable

Output

Low

CompactFlash Write Enable

Output

Low

CompactFlash IO Read

Output

Low

CompactFlash IO Write

Output

Low

CompactFlash Read Not Write

Output

VDDIOM0

VDDIOM1

VDDIOM1

VDDIOM1

VDDIOM1

VDDIOM1

VDDIOM1

VDDIOM1

VDDIOM1

VDDIOM1

VDDIOM1

VDDIOM1

VDDIOM1

VDDIOM1

VDDIOM1

Comments

Pulled-up input at reset

(100kΩ)(3), Schmitt trigger

Pulled-up input at reset

(100kΩ)(3), Schmitt trigger

Pulled-up input at reset

0 at reset

Pulled-up input at reset

0 at reset

6 AT91SAM9G45

6438D–ATARM–13-Oct-09

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