Atmel SAM9X25 Manuale utente

Features

•Core

– ARM926EJ-S™ ARM®Thumb®Processor running at up to 400 MHz @ 1.0V +/- 10%

– 16 Kbytes Data Cache, 16 Kbytes Instruction Cache, Memory Management Unit

•Memories

– One 64-Kbyte internal ROM embedding bootstrap routine: Boot on NAND Flash,

SDCard, DataFlash®or serial DataFlash. Programmable order.

– One 32-Kbyte internal SRAM, single-cycle access at system speed

– High Bandwidth Multi-port DDR2 Controller

– 32-bit External Bus Interface supporting 8-bank DDR2/LPDDR, SDR/LPSDR, Static

Memories

– MLC/SLC NAND Controller, with up to 24-bit Programmable Multi-bit Error

Correcting Code (PMECC)

•System running at up to 133 MHz

– Power-on Reset Cells, Reset Controller, Shut Down Controller, Periodic Interval

Timer, Watchdog Timer and Real Time Clock

– Boot Mode Select Option, Remap Command

– Internal Low Power 32 kHz RC and Fast 12 MHz RC Oscillators

– Selectable 32768 Hz Low-power Oscillator and 12 MHz Oscillator

– One PLL for the system and one PLL at 480 MHz optimized for USB High Speed

– Twelve 32-bit-layer AHB Bus Matrix for large Bandwidth transfers

– Dual Peripheral Bridge with dedicated programmable clock for best performance

– Two dual port 8-channel DMA Controllers

– Advanced Interrupt Controller and Debug Unit

– Two Programmable External Clock Signals

•Low Power Mode

– Shut Down Controller with four 32-bit Battery Backup Registers

– Clock Generator and Power Management Controller

– Very Slow Clock Operating Mode, Software Programmable Power Optimization

Capabilities

•Peripherals

– USB Device High Speed, USB Host High Speed and USB Host Full Speed with

dedicated On-Chip Transceiver

– Two 10/100 Mbps Ethernet MAC Controllers

– Two High Speed Memory Card Hosts

– Two CAN Controllers

– Two Master/Slave Serial Peripheral Interface

– Two Three-channel 32-bit Timer/Counters

– One Synchronous Serial Controller

– One Four-channel 16-bit PWM Controller

– Three Two-wire Interfaces

– Four USARTs, two UARTs

– One 12-channel 10-bit Analog-to-Digital Converter

– Soft Modem

•I/O

– Four 32-bit Parallel Input/Output Controllers

– 105 Programmable I/O Lines Multiplexed with up to Three Peripheral I/Os

– Input Change Interrupt Capability on Each I/O Line, optional Schmitt trigger input

– Individually Programmable Open-drain, Pull-up and pull-down resistor,

Synchronous Output

•Package

– 217-ball BGA, pitch 0.8 mm

AT91SAM

ARM-based

Embedded

MPU

SAM9X25

11054A–ATARM–27-Jul-11

SAM9X25

1. Description

The SAM9X25 is a high-performance ARM926-based embedded microprocessor unit, running

at 400 MHz and featuring multiple networking/connectivity peripherals, optimized for industrial

applications such as building automation, gateways and medical.

The SAM9X25 features two 2.0A/B compatible Controller Area Network (CAN) interfaces and

two IEEE Std 802.3-compatible 10/100Mbps Ethernet MACs. Additional communication inter-

faces include a soft modem supporting exclusively the Conexant SmartDAA line driver, HS USB

Device and Host, FS USB Host, two HS SDCard/SDIO/MMC interfaces, USARTs, SPIs, I2S,

TWIs and 10-bit ADC.

To ensure uninterrupted data transfer with minimum processor overhead, the SAM9X25 offers a

10-layer bus matrix coupled with 2 x 8 central DMA channels and dedicated DMAs for the high-

speed connectivity peripherals.

The External Bus Interface incorporates controllers for 8-bank DDR2/LPDDR, SDRAM/LPS-

DRAM, static memories, and specific circuitry for MLC/SLC NAND Flash with integrated ECC.

The SAM9X25 is available in a 217-ball BGA package with 0.8mm ball pitch.

11054A–ATARM–27-Jul-11

SAM9X25

2. Block Diagram

Figure 2-1. SAM9X25 Block Diagram

AIC

APB

PLLA

System Controller

PMC

PLLUTMI

PIT

WDT

OSC 32K

SHDC

RSTC

POR

DBGU

GPBR

USART0

USART1

USART2

USART3

SPI0

OSC12M

PIOB

POR

PIOC

RTC

PIOD

Transc.

DMA

Transceiver

DMA

SSC

PIO

HS EHCI /

FS OHCI

USB HOST

ARM926EJ-S

JTAG / Boundary Scan

In-Circuit Emulator

MMU

Bus Interface

ICache

16 KB

DCache

16 KB

PIOA

NPCS2

NPCS1

SPCK

MOSI

MISO

NPCS0

NPCS3

RTS0-3

SCK0-3

TXD0-3

RDX0-3

CTS0-3

DFSDP/HFSDPA,

DFSDM/HFSDMA

DHSDP/HHSDPA,

DHSDM/HHSDMA

HFSDPB,HFSDMB

HHSDPB,HHSDMB

TDI

TDO

TMS

TCK

JTAGSEL

RTCK

BMS

VBG

FIQ

IRQ

DRXD

DTXD

PCK0-PCK1

VDDBU

SHDN

WKUP

XIN

NRST

XOUT

XIN32

XOUT32

VDDCORE

TST

NTRST

PB PA

TC0

TC1

TC2

TC3

TC4

TC5

12M

SPI1

NPCS2

NPCS1

SPCK

MOSI

MISO

NPCS0

NPCS3

HSMCI0

SD/SDIO

FIFO

MCI0_CK

MCI0_DA0-MCI0_DA3

MCI0_CDA

EMAC0

DMA

12-Channel

10-bit ADC

ADVREF

VDDANA

AD5-AD11

AD0

AD1

AD2

AD3

PIO

PWM

AD4

Peripheral

Bridge

SRAM

32KB

Peripheral

Bridge

Transc.

HFSDPC

HFSDMC

8-CH

DMA

8-CH

DMA

PWM0-PWM3

GNDANA

UTXD0-UTXD1

URDX0-URDX1

UART0

UART1

EBI

Static

Memory

Controller

D0-D15

A0/NBS0

NCS0

NCS1/SDCS

NRD

NWR0/NWE

NWR1/NBS1

SDCK, #SDCK, SDCKE

RAS, CAS

SDWE, SDA10

A1/NBS2/NWR2/DQM2

NANDOE, NANDWE

NWAIT

NCS2, NCS3, NCS4, NCS5

NANDCS

DQM[0..1]

DQS[0..1]

NANDALE, NANDCLE

PIO

D16-D31

NWR3/NBS3/DQM3

A20-A25

TWI0

TWI1

TWI2

TWCK0-TWCK2

TWD0-TWD2

Multi-Layer AHB Matrix

DDR2SDR

Controller

SMD

DIBN

DIBP

A2-A15, A19

A16/BA0

A18/BA2

A17/BA1

NAND Flash

Controller

PMECC

PMERRLOC

HSMCI1

SD/SDIO

FIFO

MCI1_CK

MCI1_CDA

MCI1_DA0-MCI1_DA3

TCLK0-TCLK5

TIOA0-TIOA5

TIOB0-TIOB5

ADTRG

USB

EMAC1

(RMII)

DMA

ETXCK-ERXCK

ETXEN-ETXER

ECRS-ECOL

ERXER-ERXDV

ERX0-ERX3

ETX0-ETX3

EMDC

EMDIO

REFCK

ETXEN

ERXER-CRSDV

ERX0-ERX1

ETX0-ETX1

EMDC

EMDIO

CAN0

CAN1

CANTX0-CANTX1

CANRX0-CANRX1

ROM

32 KB + 96 KB

11054A–ATARM–27-Jul-11

SAM9X25

3. Signal Description

Table 3-1 gives details on the signal names classified by peripheral.

Table 3-1. Signal Description List

Signal Name Function Type Active Level

Clocks, Oscillators and PLLs

XIN Main Oscillator Input Input

XOUT Main Oscillator Output Output

XIN32 Slow Clock Oscillator Input Input

XOUT32 Slow Clock Oscillator Output Output

VBG Bias Voltage Reference for USB Analog

PCK0-PCK1 Programmable Clock Output Output

Shutdown, Wakeup Logic

SHDN Shut-Down Control Output

WKUP Wake-Up Input Input

ICE and JTAG

TCK Test Clock Input

TDI Test Data In Input

TDO Test Data Out Output

TMS Test Mode Select Input

JTAGSEL JTAG Selection Input

RTCK Return Test Clock Output

Reset/Test

NRST Microcontroller Reset I/O Low

TST Test Mode Select Input

NTRST Test Reset Signal Input

BMS Boot Mode Select Input

Debug Unit - DBGU

DRXD Debug Receive Data Input

DTXD Debug Transmit Data Output

Advanced Interrupt Controller - AIC

IRQ External Interrupt Input Input

FIQ Fast Interrupt Input Input

PIO Controller - PIOA - PIOB - PIOC - PIOD

PA0-PA31 Parallel IO Controller A I/O

PB0-PB18 Parallel IO Controller B I/O

PC0-PC31 Parallel IO Controller C I/O

PD0-PD21 Parallel IO Controller D I/O

11054A–ATARM–27-Jul-11

SAM9X25

External Bus Interface - EBI

D0-D15 Data Bus I/O

D16-D31 Data Bus I/O

A0-A25 Address Bus Output

NWAIT External Wait Signal Input Low

Static Memory Controller - SMC

NCS0-NCS5 Chip Select Lines Output Low

NWR0-NWR3 Write Signal Output Low

NRD Read Signal Output Low

NWE Write Enable Output Low

NBS0-NBS3 Byte Mask Signal Output Low

NAND Flash Support

NFD0-NFD16 NAND Flash I/O I/O

NANDCS NAND Flash Chip Select Output Low

NANDOE NAND Flash Output Enable Output Low

NANDWE NAND Flash Write Enable Output Low

DDR2/SDRAM/LPDDR Controller

SDCK,#SDCK DDR2/SDRAM Differential Clock Output

SDCKE DDR2/SDRAM Clock Enable Output High

SDCS DDR2/SDRAM Controller Chip Select Output Low

BA[0..2] Bank Select Output Low

SDWE DDR2/SDRAM Write Enable Output Low

RAS-CAS Row and Column Signal Output Low

SDA10 SDRAM Address 10 Line Output

DQS[0..1] Data Strobe I/O

DQM[0..3] Write Data Mask Output

High Speed MultiMedia Card Interface - HSMCI0-1

MCI0_CK, MCI1_CK Multimedia Card Clock I/O

MCI0_CDA, MCI1_CDA Multimedia Card Slot Command I/O

MCI0_DA0-MCI0_DA3 Multimedia Card 0 Slot A Data I/O

MCI1_DA0-MCI1_DA3 Multimedia Card 1 Slot A Data I/O

Table 3-1. Signal Description List (Continued)

Signal Name Function Type Active Level

11054A–ATARM–27-Jul-11

SAM9X25

Universal Synchronous Asynchronous Receiver Transmitter - USARTx

SCKx USARTx Serial Clock I/O

TXDx USARTx Transmit Data Output

RXDx USARTx Receive Data Input

RTSx USARTx Request To Send Output

CTSx USARTx Clear To Send Input

Universal Asynchronous Receiver Transmitter - UARTx

UTXDx UARTx Transmit Data Output

URXDx UARTx Receive Data Input

Synchronous Serial Controller - SSC

TD SSC Transmit Data Output

RD SSC Receive Data Input

TK SSC Transmit Clock I/O

RK SSC Receive Clock I/O

TF SSC Transmit Frame Sync I/O

RF SSC Receive Frame Sync I/O

Timer/Counter - TCx x=0..5

TCLKx TC Channel x External Clock Input Input

TIOAx TC Channel x I/O Line A I/O

TIOBx TC Channel x I/O Line B I/O

Serial Peripheral Interface - SPIx

SPIx_MISO Master In Slave Out I/O

SPIx_MOSI Master Out Slave In I/O

SPIx_SPCK SPI Serial Clock I/O

SPIx_NPCS0 SPI Peripheral Chip Select 0 I/O Low

SPIx_NPCS1-SPIx_NPCS3 SPI Peripheral Chip Select Output Low

Two-Wire Interface -TWIx

TWDx Two-wire Serial Data I/O

TWCKx Two-wire Serial Clock I/O

Table 3-1. Signal Description List (Continued)

Signal Name Function Type Active Level

11054A–ATARM–27-Jul-11

SAM9X25

Pulse Width Modulation Controller- PWMC

PWM0-PWM3 Pulse Width Modulation Output Output

USB Host High Speed Port - UHPHS

HFSDPA USB Host Port A Full Speed Data + Analog

HFSDMA USB Host Port A Full Speed Data - Analog

HHSDPA USB Host Port A High Speed Data + Analog

HHSDMA USB Host Port A High Speed Data - Analog

HFSDPB USB Host Port B Full Speed Data + Analog

HFSDMB USB Host Port B Full Speed Data - Analog

HHSDPB USB Host Port B High Speed Data + Analog

HHSDMB USB Host Port B High Speed Data - Analog

HFSDMC USB Host Port C Full Speed Data - Analog

HFSDPC USB Host Port C Full Speed Data + Analog

USB Device High Speed Port - UDPHS

DFSDM USB Device Full Speed Data - Analog

DFSDP USB Device Full Speed Data + Analog

DHSDM USB Device High Speed Data - Analog

DHSDP USB Device High Speed Data + Analog

Ethernet 10/100 - EMAC0

ETXCK Transmit Clock or Reference Clock Input

ERXCK Receive Clock Input

ETXEN Transmit Enable Output

ETX0-ETX3 Transmit Data Output

ETXER Transmit Coding Error Output

ERXDV Receive Data Valid Input

ERX0-ERX3 Receive Data Input

ERXER Receive Error Input

ECRS Carrier Sense and Data Valid Input

ECOL Collision Detect Input

EMDC Management Data Clock Output

EMDIO Management Data Input/Output I/O

RMII Ethernet 10/100 - EMAC1

REFCK Transmit Clock or Reference Clock Input

ETXEN Transmit Enable Output

ETX0-ETX1 Transmit Data Output

CRSDV Receive Data Valid Input

Table 3-1. Signal Description List (Continued)

Signal Name Function Type Active Level

11054A–ATARM–27-Jul-11

SAM9X25

ERX0-ERX1 Receive Data Input

ERXER Receive Error Input

EMDC Management Data Clock Output

EMDIO Management Data Input/Output I/O

Analog-to-Digital Converter - ADC

AD0-AD11 12 Analog Inputs Analog

ADTRG ADC Trigger Input

ADVREF ADC Reference Analog

CAN Controller - CANx

CANRXx CAN input Input

CANTXx CAN output Output

Soft Modem - SMD

DIBN Soft Modem Signal I/O

DIBP Soft Modem Signal I/O

Table 3-1. Signal Description List (Continued)

Signal Name Function Type Active Level

11054A–ATARM–27-Jul-11

SAM9X25

4. Package and Pinout

The SAM9X25 is available in 217-ball BGA package.

4.1 Overview of the 217-ball BGA Package

Figure 4-1 shows the orientation of the 217-ball BGA Package.

Figure 4-1. Orientation of the 217-ball BGA Package

4.2 I/O Description

TOP VIEW

BALL A1

ABCDEF GHJ KL M NPRT U

Table 4-1. SAM9X25 I/O Type Description

I/O Type Voltage Range Analog Pull-up Pull-down Schmitt Trigger

GPIO 1.65-3.6V switchable switchable switchable

GPIO_CLK 1.65-3.6V switchable switchable switchable

GPIO_CLK2 1.65-3.6V switchable switchable switchable

GPIO_ANA 3.0-3.6V Iswitchable switchable

EBI 1.65-1.95V, 3.0-

3.6V switchable switchable

EBI_O 1.65-1.95V, 3.0-

3.6V Reset State Reset State

EBI_CLK 1.65-1.95V, 3.0-

3.6V

RSTJTAG 3.0-3.6V Reset State Reset State Reset State

SYSC 1.65-3.6V Reset State Reset State Reset State

VBG 0.9-1.1V I

USBFS 3.0-3.6V I/O

USBHS 3.0-3.6V I/O

CLOCK 1.65-3.6V I/O

DIB 3.0-3.6V I/O

11054A–ATARM–27-Jul-11

SAM9X25

When “Reset State” is mentioned, the configuration is defined by the “Reset State” column of the

Pin Description table.

4.2.1 Reset State

In the tables that follow, the column “Reset State” indicates the reset state of the line with

mnemonics.

• “PIO” “/” signal

Indicates whether the PIO Line resets in I/O mode or in peripheral mode. If “PIO” is mentioned,

the PIO Line is maintained in a static state as soon as the reset is released. As a result, the bit

corresponding to the PIO Line in the register PIO_PSR (Peripheral Status Register) resets low.

If a signal name is mentioned in the “Reset State” column, the PIO Line is assigned to this func-

tion and the corresponding bit in PIO_PSR resets high. This is the case of pins controlling

memories, in particular the address lines, which require the pin to be driven as soon as the reset

is released.

• “I”/”O”

Indicates whether the signal is input or output state.

• “PU”/”PD”

Indicates whether Pull-Up, Pull-Down or nothing is enabled.

•“ST”

Table 4-2. SAM9X25 I/O Type Assignment and Frequency

I/O Type

I/O Frequency

(MHz)

Charge Load

(pF)

Output

Current Signal Name

GPIO 40 10 all PIO lines except the following

GPIO_CLK 54 10 MCI0CK, MCI1CK, SPI0SPCK, SPI1SPCK,

EMACx_ETXCK, ISI_MCK

GPIO_CLK2 75 10

GPIO_ANA 25 10 16mA,

40mA (peak) ADx, GPADx

EBI 133 50 (3.3V)

30 (1.8V) all Data lines (Input/output) except the following

EBI_O 66 50 (3.3V)

30 (1.8V)

all Address and control lines (output only) except the

following

EBI_CLK 133 10 CK, #CK

RSTJTAG 10 10 NRST, NTRST, BMS, TCK, TDI, TMS, TDO, RTCK

SYSC 0.25 10 WKUP, SHDN, JTAGSEL, TST, SHDN

VBG 0.25 10 VBG

USBFS 12 10 HFSDPA, HFSDPB/DFSDP, HFSDPC, HFSDMA,

HFSDMB/DFSDM, HFSDMC

USBHS 480 10 HHSDPA, HHSDPB/DHSDP, HHSDMA,

HHSDMB/DHSDM

CLOCK 50 50 XIN, XOUT, XIN32, XOUT32

DIB 25 25 DIBN, DIBP

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