Atmel ARM-Based Evaluation Kit AT91SAM9N12-EK AT91SAM9N12-EK Datenbogen
Produktcode
AT91SAM9N12-EK
6-4
SAM9N12/CN11-EK User Guide
11186A–ATARM–29-Nov-12
6.3.4
QTouch
The SAM9N12/CN11-DM board carries a QTouch device piloted through a TWI interface. It manages
four capacitive touch buttons directly printed on the PCB.
four capacitive touch buttons directly printed on the PCB.
There are dual footprints for the QTouch device, and SOIC is the default mounted one.
Figure 6-5.
QTouch
6.3.5
1-Wire
The DM board also uses 1-Wire device as “soft label” to store the information such as chip type, manu-
facture name, production date, etc.
facture name, production date, etc.
Figure 6-6.
1-Wire on DM
TWD0
K2
KEY
K3
KEY
C21
100n
K4
KEY
TWCK0
MN5
QT1070_SOIC
VDD
1
MODE(VSS)
2
SDA
3
RESET
4
CHANGE
5
SCL
6
KEY6
7
KEY5
8
KEY4
9
KEY3
10
KEY2
11
KEY1
12
KEY0
13
VSS
14
RESET#
R64
4.7k
DNP
R66
4.7k
R65
4.7k
R68
4.7k
R67
4.7k
3V3_LCD
R69
4.7k
R71
4.7k
DNP
R70
4.7k
DNP
R73
4.7k
DNP
R72
4.7k
DNP
R74
4.7k
DNP
RESET#
TWD0
3V3_LCD
ZB_IRQ0
C22
100n
KEY 4
TWCK0
KEY 3
MN6
QT1070
DNP
NC4
7
NC3
10
NC2
18
NC1
19
NC0
20
SDA
12
CHANGE
14
RESET
13
NC5
6
SCL
15
KEY4
1
KEY3
2
KEY2
3
KEY1
4
KEY0
5
VD
D
9
M
OD
E
(VS
S)
11
VS
S
8
KEY6
16
KEY5
17
Th
e
rma
l
21
KEY 1
KEY 2
K1
KEY
R75
10k
3V3_LCD
ZB_IRQ0
3V3_LC D
ON E_WIR E
R 45
4.7k
4.7k
MN 2
D S2433S
N C 1
1
N C 2
2
D ATA
3
GN D
4
N C3
5
N C4
6
N C5
7
N C6
8