Board Description
3-4
AT91SAM9RL-EK Evaluation Board User Guide
6325A–ATARM–08-Jan-08
3.2
AT91SAM9RL Block Diagram
Figure 3-1.
AT91SAM9RL Block Diagram
3.3
Microcontroller
One AT91SAM9RL64 217-ball LFBGA fitted on board
3.4
Memory
32 Kbytes of Internal ROM
64 Kbyte of Internal SRAM
Atmel serial DataFlash
64 Mbytes of SDRAM memory (32-bit bus width)
256 Mbytes of NAND Flash memory (8-bit bus width)
TWI serial EEPROM (footprint only)
3.5
Clock Circuitry
12 MHz standard crystal for the embedded oscillator
AIC
D0-D15
A0/NBS0
A2-A15
A16/BA0
A17/BA1
NCS0
NCS1/SDCS
NRD/CFOE
NWR0/NWE/CFWE
NWR1/NBS1/CFIOR
NWR3/NBS3/CFIOW
SDCK, SDCKE
RAS, CAS
SDWE, SDA10
FIQ
IRQ
PLLRCA
DRXD
DTXD
APB
PLLA
A1/NBS2/NWR2
TST
PCK0-PCK1
System Controller
VDDBU
SHDN
WKUP
XIN
NRST
NANDOE, NANDWE
PMC
UPLL
XOUT
PIT
WDT
RTT
OSC
32K
XIN32
XOUT32
SHDC
RSTC
DBGU
SLAVE
MASTER
PDC
4
GPBREG
A23-A24 A18-A20
NCS5/CFCS1
A25/CFRNW
NCS4/CFCS0
D16-D31
NWAIT
CFCE1-CFCE2
EBI
Static
Memory
Controller
CompactFlash
NAND Flash
& ECC
NCS2
NCS3/NANDCS
MCI
TWI0
USART0
USART1
USART2
USART3
SPI
PDC
PWM
TC0
TC1
TC2
AC97
PDC
SSC0
SSC1
PDC
Peripheral
DMA
Controller
Peripheral
Bridge
ROM
32K Bytes
2-channel
DMA
OSC
12M
DMA
USB
Device
HS
6-channel 10-bit ADC
PDC
SDRAM
Controller
D
A0-D
A3
CD
A
CK
TWD0
TWCK0
CTS0-CTS3
R
TS0-R
TS3
SCK0-SCK3
RDX0-RDX3
TXD0-TXD3
NPCS0-NPCS3
SPCKMOSIMISO
PWM0-PWM3
TCLK0-TCLK2
TIO
A0-TIO
A2
TIOB0-TIOB2
AC97CK
AC97FS
AC97RX
AC97TX
TK0-TK1
TF0-TF1
TD0-TD1
RD0-RD1
RF0-RF1
RK0-RK1
TSADTRG
AD0X
P
TSAD
VREF
VDD
ANA
GND
AN
VBGDFSDP
DFSDM
PIOA
PIOB
LCDC
SRAM
64K Bytes
HS UTMI
Transceiver
POR
PIOC
DHSDP
DHSDM
GNDUTMI
VDDUTMI
ARM926EJ-S Processor
JTAG Selection and Boundary Scan
In-Circuit Emulator
TDI TDO TMS TCK
JT
A
GSEL
I
R
TCK
ICache
4 Kbytes
PDC
BMS
NTRST
RTC
RC
TCM
Interface
ITCM DTCM
PIOD
A21/NANDALE
A22/NANDCLE
POR
VDDCORE
AD1X
M
Touch
Screen
Controller
GP
AD4
GP
AD5
DCD0 DSR0
DTR0
RI0
PDC
AD2Y
P
AD3Y
M
PDC
TWI1
TWD1
TWCK1
6-layer AHB Bus Matrix
D
DMA
DCache
4 Kbytes
LCDD0-LCDD23
LCD
VSYNC
LCDHSYNC
LCDDO
TCK
LDDEN
LCDCC
LCDPWR
LCDMOD
