AT91SAM9G45-EKES Atmel, AT91SAM9G45-EKES Datasheet - Page 176

• Manufacturer Part Number: AT91SAM9G45-EKES
• Description: KIT EVAL FOR AT91SAM9G45
• Manufacturer: Atmel
• Series: AT91SAM Smart ARMr
• Type: MCUr

Specifications of AT91SAM9G45-EKES

• Contents: Board
• Processor To Be Evaluated: SAM9G45
• Data Bus Width: 32 bit
• Interface Type: I2C, SPI, UART
• Maximum Operating Temperature: + 50 C
• Minimum Operating Temperature: - 10 C
• Operating Supply Voltage: 1.8 V to 3.3 V
• For Use With/related Products: AT91SAM9G45
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: Q4626953

20.2.8.4
176
SDCS
Hardware Configuration
Software Configuration
A[1..14]
D[0..31]
AT91SAM9G45
R2
R2
2x16-bit SDRAM
0R
0R
VDDIOM
R1
R1
470K
470K
A2
A3
A4
A5
A6
A7
A8
A9
A10
A11
SDA10
A13
BA0
BA1
A14
CKE
CLK
DQM0
DQM1
CAS
RAS
WE
The following configuration has to be performed:
The Data Bus Width is to be programmed to 32 bits. The data lines D[16..31] are multiplexed
with PIO lines and thus the dedicated PIOs must be programmed in peripheral mode in the PIO
controller.
The SDRAM initialization sequence is described in the section “SDRAM Device Initialization” in
“SDRAM Controller (SDRAMC)”.
• Assign the EBI CS1 to the SDRAM controller by setting the bit EBI_CS1A in the EBI Chip
• Initialize the SDRAM Controller depending on the SDRAM device and system bus frequency.
SDRAM
23
24
25
26
29
30
31
32
33
34
22
35
20
21
36
40
37
38
15
39
17
18
16
19
Select Assignment Register located in the bus matrix memory space.
MN1
MN1
A0
A1
A2
A3
A4
A5
A6
A7
A8
A9
A10
A11
BA0
BA1
A12
N.C1
CKE
CLK
DQML
DQMH
CAS
RAS
WE
CS
MT48LC16M16A2P-75IT
MT48LC16M16A2P-75IT
MT48LC16M16A2
MT48LC16M16A2
256 Mbits
VDDQ
VDDQ
VDDQ
VDDQ
VSSQ
VSSQ
VSSQ
VSSQ
DQ10
DQ11
DQ12
DQ13
DQ14
DQ15
VDD
VDD
VDD
DQ0
DQ1
DQ2
DQ3
DQ4
DQ5
DQ6
DQ7
DQ8
DQ9
VSS
VSS
VSS
2
4
5
7
8
10
11
13
42
44
45
47
48
50
51
53
1
14
27
3
9
43
49
28
41
54
6
12
46
52
D0
D1
D2
D3
D4
D5
D6
D7
D8
D9
D10
D11
D12
D13
D14
D15
C1
C1
100NF
100NF
VDDIOM
C2
C2
100NF
100NF
C3
C3
100NF
100NF
C4
C4
100NF
100NF
C5
C5
100NF
100NF
C6
C6
100NF
100NF
R4
R4
C7
C7
100NF
100NF
0R
0R
VDDIOM
R3
R3
470K
470K
A2
A3
A4
A5
A6
A7
A8
A9
A10
A11
SDA10
A13
BA0
BA1
A14
CKE
CLK
DQM2
DQM3
CAS
RAS
WE
23
24
25
26
29
30
31
32
33
34
22
35
20
21
36
40
37
38
15
39
17
18
16
19
MN2
MN2
A0
A1
A2
A3
A4
A5
A6
A7
A8
A9
A10
A11
BA0
BA1
A12
N.C1
CKE
CLK
DQML
DQMH
CAS
RAS
WE
CS
MT48LC16M16A2
MT48LC16M16A2
256 Mbits
VDDQ
VDDQ
VDDQ
VDDQ
VSSQ
VSSQ
VSSQ
VSSQ
DQ10
DQ11
DQ12
DQ13
DQ14
DQ15
DQ0
DQ1
DQ2
DQ3
DQ4
DQ5
DQ6
DQ7
DQ8
DQ9
VDD
VDD
VDD
VSS
VSS
VSS
2
4
5
7
8
10
11
13
42
44
45
47
48
50
51
53
1
14
27
3
9
43
49
28
41
54
6
12
46
52
6438F–ATARM–21-Jun-10
C8
C8
100NF
100NF
VDDIOM
D16
D17
D18
D19
D20
D21
D22
D23
D24
D25
D26
D27
D28
D29
D30
D31
C9
C9
100NF
100NF
C10
C10
100NF
100NF
C11
C11
100NF
100NF
C12
C12
100NF
100NF
C13
C13
100NF
100NF
C14
C14
100NF
100NF