User manual

8
SAM4S-WPIR-RD [USER GUIDE]
42060A–ATARM–12/2012
Figure 4-2. Power Supply
4.2.6 Memory
The SAM4S features an External Bus Interface (EBI) that permits interfacing to a broad range of external memo-
ries and virtually to any parallel peripheral. The SAM4S-WPIR-RD board is equipped with a memory device
connected to the SAM4 EBI:
 One SRAM IS62WV10248DBLL
Figure 4-3. Memory
JP8
RV2
V5.5MLA0603
D4
NSR0320MW2T1G
U4
JY- 3AAA
VCC
1
GND
2
FGND
DGND
FGNDDGND
DGND
DGND
VIN_SYSTEM
3 cell AAA battery holder
JP9
U6
TPS78230DDCR
IN
1
GND1
2
EN
3
GND2
4
OUT
5
C58
100nF
U5
TPS78230DDCR
IN
1
GND1
2
EN
3
GND2
4
OUT
5
+3VVIN_SYSTEM
DGND
DGND
DGND
+3V_LCD
+3V_PERIPH
+3V_MCU
VIN_SYSTEM
DGND
JP10
JP7
C70
100nF
C57
1uF
C59
1uF
R41 100K
C60
1uF
C29
1uF
R43 100K
PC17
VBU S
PB11 PB10
VBAT
L6 220ohm at 100MHz
1 2
C6
16V
33 uF
5V D- D+ ID G
J1
USB Micro B
1 2 3 4
7
5
6
8
9
C3
10pF
RV1
V5.5MLA0603
R2 68K
R4
27R
C51
100nF
R1 47K R3
27R
D3
NSR0320MW2T1G
PC18
PC8
PC11
PC4
PC3
PC1
PC25
PC20
PC31
PC21
PC27
PC23
PA18
PC19
PC22
PC26
PC30
PC24
PA19
PC29
PA20
PA0
PA1
PC28
PC14
PC9
PC5
PC2
PC0
PC16
PC7
PC6
PC8_WE PC8
C28 33pF
R22
47K
R20
DNP
R21
470K
C27
1uF
R25
DNP
MN3
IS62WV10248DBLL
A0
5
A1
4
A2
3
A3
2
A4
1
A5
44
A6
43
A7
42
A8
39
A9
28
A10
27
A11
26
A12
25
A13
24
A14
23
A15
22
A16
21
A17
20
A18
19
A19
18
CS1#
6
CS2
40
OE#
41
WE#
17
D0
9
D1
10
D2
13
D3
14
D4
31
D5
32
D6
35
D7
36
NC1
7
NC2
8
NC3
15
NC4
16
NC5
29
NC6
30
NC7
37
NC8
38
VDD1
11
VDD2
33
GND1
12
GND2
34
Q2
IRLML6401
1
3 2
R46 0R
C26
100nF
DGND
DGND
+3V_SRAM
+3V_PERIPH
+3V_SRAM
DGND
NWE
NRD
NCS0
PC8