3-4 AT91SAM9XE-EK Evaluation Board User Guide

6311A–ATARM–04-Feb-08
3.2 Block Diagram

Figure 3-1. AT91SAM9XE512/256/128 Block Diagram

ARM926EJ-S Processor
JTAG Selection and Boundary Scan
In-Circuit Emulator
AIC
ROM
32 Kbytes
D0-D15
A0/NBS0
A2-A15, A18-A20
A16/BA0
A17/BA1
NCS0
NCS1/SDCS
NRD
NWR0/NWE
NWR1/NBS1
NWR3/NBS3
SDCK, SDCKE
RAS, CAS
SDWE, SDA10
FIQ
IRQ0-IRQ2
PLLRCA
DRXD
DTXD MMU
APB
Flash
128, 256
or 512
Kbytes
Peripheral
Bridge
24-channel
Peripheral
DMA
PLLA Bus Interface
A1/NBS2/NWR2
TST
PCK0-PCK1
System
Controller
XIN
TDI
TDO
TMS
TCK
JTAGSEL
ID
NANDOE, NANDWE
PMC
PLLB
OSC
XOUT
PITWDT
DBGU
SLAVEMASTER
PDC
A23-A24
NCS5/CFCS1
A25/CFRNW
NCS4/CFCS0
NWAIT
CFCE1-CFCE2
EBI
Static
Memory
Controller
CompactFlash
NAND Flash
SDRAM
Controller
NCS2, NCS6, NCS7
NCS3/NANDCS
RTCK
ECC
Controller
ETXCK-ERXCK
ETXEN-ETXER
ECRS-ECOL
ERXER-ERXDV
ERX0-ERX3
ETX0-ETX3
MDC
MDIO
F100
10/100 Ethernet
MAC
FIFO
DMA
FIFO
SSC
PDC
USB
Device
DDM
DDP
TK
TF
TD
RD
RF
RK
TC0
TC1
TC2
TCLK0-TCLK2
TIOA0-TIOA2
TIOB0-TIOB2
SPI0
SPI1
PDC
USART0
USART1
USART2
USART3
USART4
RTS0-RTS3
SCK0-SCK3
TXD0-TXD5
RXD0-RXD5
CTS0-CTS3
PDC
TWI0
TWI1
TWCK
TWD
MCI
PDC
Transceiver
DPRAM
ICache
8 Kbytes
DCache
8 Kbytes
6-layer Matrix
NPCS2
NPCS1
SPCK
MOSI
MISO
NPCS0
NPCS3
SPI0_, SPI1_
MCCK
MCDA0-MCDA3
MCCDA
NRST
XIN32
XOUT32
VDDCORE
PIOA
PIOB
PIOC
DSR0
DCD0
DTR0
RI0
USB
OHCI
DMA
Transc.
Transc.
HDPA
HDMA
HDPB
HDMB
Image Sensor Interface
DMA
ISI_PCK
ISI_DO-ISI_D7
ISI_HSYNC
ISI_VSYNC
ISI_MCK
4-channel
10-bit ADC
AD0-AD3
ADTRIG
ADVREF
VDDANA
GNDANA
PDC
D16-D31
RTT
OSC
RSTC
POR
4GPREG
SHDN
WKUP SHDC
POR
RC
OSCSEL
VDDBU
MCDB0-MCDB3
MCCDB
TC3
TC4
TC5
TCLK3-TCLK5
TIOA3-TIOA5
TIOB3-TIOB5
Fast SRAM
16 or 32
Kbytes
Filter
A21/NANDALE
A22/NANDCLE
NTRST
ERASE
PDC
BOD