User manual

Setting Up the AT91SAM9G20-EK Board
AT91SAM9G20-EK Evaluation Board User Guide 2-5
6413C–ATARM–18-Feb-09
2.7 AT91SAM9G20-EK Block Diagram
Figure 2-3. AT91SAM9G20-EK Block Diagram
PIO
ET
X
C
K
/
R
E
F
CLK
ET
X
0
ET
X
1
ETXEN
ERX1
ERX0
ERXDV
ERXER
EMDC
EMDIO
ET
X
2
ET
X
3
ERX2
ERX3
ET
X
ER
ERXCK
E
C
RS
ECO
L
MCDB2
SPI0_NPCS0 MCDB3
S
P
I
0
_MOSI MCCDB
M
C
CK
SPI0_MISO MCDB0
MCDB1
SDRAM
NANFL
ASH
DAC
WM8
7
31
5VDC
DBGU
H
O
ST
A
HOST B
USB
D
EVI
C
E
C
O
M1
C
O
M
0
RS232
CA
R
D
R
EA
DER
DBGU_RXD D
B
GU_TX
D
10/100 Mbps FAST ETHERNET
EEPROM
SERIAL
PIO
P
I
O
P
I
O
PIO
TWD
TWCK
SPI0_N
P
C
S
1
SP
I
0_SPCK
DATAFLASH
SERIAL
DATAFLASH
MCIB
SH
E
E
T 2
SHEET 5
SHEET 6
SH
EE
T 7
PA23
/
TWD
PA24
/
T
WC
K
TF0 TK0 TD0 PCK0
SPI1
_N
P
C
S
0
DATAFLASH
MCIA
C
A
RD
READER
(B
O
OT
)
MCDA0
MCDA1 M
CDA2
M
CDA3
M
CCK
M
CCD
A
RAS C
A
S
S
D
A
1
0
S
D
W
E
S
D
CS_
NC
S
1
S
D
CK
S
D
CKE
NBS1 NBS
3
PB
[
0..
3
1]
PB
9
PA
1
7
PA
1
9
P
B
0
PA
1
1
PA
1
0
PA25 PA26
PA
2
2
PA
2
7
PA
2
8
PA
2
9
PA
1
3
PA
1
2
PA16
P
A
15
P
A
14
PA20 PA21 PA
1
8
PA
[
0.
.3
1
]
NRST
N
AN
D
OE
N
AN
D
WE
A22 A
21
D[
0
..31]
A
1
6
A
1
7
A
[
0
..
1
4
]
A
[
0
.
.2
2
]
NCS0
NRST
CF
W
E_
NWE_
NW
R0
CFOE_N
R
D
RAS
CAS S
D
A10
SDWE S
D
C
S
_
NCS1
S
D
CK
S
D
CKE
NBS1 NBS3 NANDOE
NANDWE
PB
[
0.
.3
1]
DDP HDPA HDM
A
HDPB HDM
B
DD
M
PB15
PB
[
0
..31]
PB
1
4
P
A0
P
A5
PA[0..
3
1]
P
A4
P
A3
PA8
P
A1
P
C
1
4
P
C
1
3
PC[0..15]
PB
26
PB
2
3
PB
2
5
PB28
PB6 PB7
P
B
29
PB4 PB5
PB
27
PB
2
4
PB
2
2
D
[0
..1
5
]
PC[0
.
.15]
PC5
NRST PC11 PA2 P
A2
3
P
A2
4
PC9
PB17 PB18 P
B
16
P
C
[0.
.
15
]
PC1
PB
[
0.
.3
1
]
PA
2
3
PA
2
4
PB
3
PA6
PA9 PA
1
0
PA
1
1
PA
7
P
C
2
PB
[
0.
.3
1
]
PA
8
SE
R
IA
L
INTERF
A
CES
0
5
-
COMMUNICAT
IO
N
HDMA HDMB
DD
M
D
DP
HDPA HDPB
PB29 PB26
PB4
PB28
PB6
PB5
PB7
PB2
5
PC5
PB14
PB2
3
PB15 PB2
2
PB27 PB24
R
MII_MII
ET
HERNET
03
-
RMII_
M
II ETHERNET
NRST
PA2
8
PA1
8
PA1
2
PA2
2
PA1
3
PA14
PA1
0
PA15
PA1
1
PA1
7
PA25 PA26 PA20
PA19
PB0
PA27
PA2
9
PA21
PA16
M
EM
OR
Y
03 - MEMORY
CAS
SDW
E
SDC
S_
NC
S1
SDC
KE
CFIOR_NBS1_NWR1 SDC
K
SDA1
0
D
[
0..
3
1
]
RAS
C
F
I
O
W
_
NBS3
_
N
W
R3
N
RST
NANDOE
NAN
D
WE
PC13 PC14
A21 A22
PA0 PA5 PA4 PA8 PA3
PA2
PA1
PC
11
A1
6
A1
7
A[0
..
1
4
]
D[
0
..1
5
]
PA24 PA2
3
PC9 PA6 PA9 PA1
0
PA1
1
PA8 PA7 PC2
EXPANSION
_
Users I
n
terfac
e
s
06
- EX
P
A
N
S
I
O
N
C
O
N
NECTORS
PA[
0..31]
A[
0..
2
2
]
D[0..31]
PB[0.
.
31]
C
AS
SDWE N
ANDOE
SDCS_NCS1 NRST SDC
KE
SDC
K
CFIOR_NBS1_NWR1
N
ANDWE
SDA10
R
AS
CFIOW_NBS3_NWR3
NCS0
CFW
E_
NWE_N
W
R
0
C
F
O
E_NRD
PC[0..15] AVD
D
AGN
D
VR
EF
P
PO
WER SUPPL
Y
01 -
PO
WER SUPPL
Y
SHD
N
PB9
PB16
PB17
PA23
PC
1
PB18 PA24
PB3
A
T
9
1
SA
M
9
G
20-CU
02
- AT91SAM
9
G20-CU
PA[0..3
1
]
A[
0
..
2
2
]
PB[0
.
.3
1
]
PC[0..15]
D[0..31]
CAS
SD
W
E
HDMA HDMB
SD
C
S_
N
C
S1
NRST
NCS0
C
F
WE_N
W
E_
N
W
R0
SD
CKE
DD
M
CFIOR_NBS1_N
W
R1
SD
CK
SDA1
0
DD
P
RAS
HDPA
C
F
IO
W
_NBS3
_
N
W
R3
HDPB
NANDOE
CFO
E_
NR
D
NAN
D
WE
SHDN
AVD
D
AGN
D
VREFP