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Evaluation Kit Hardware
4-18
SAM4S-EK Development Board User Guide
11139A–ATARM–29-Nov-11
Table 4-3.
PIO Port C Pin Assignments and Signal Descriptions
No
I/O Line
Peripheral A
Peripheral
B
Peripheral
C
Extra
Function
System
Function
Comments
1
PC0
D0
PWML0
EBI D0
2
PC1
D1
PWML1
EBI D1
3
PC2
D2
PWML2
EBI D2
4
PC3
D3
PWML3
EBI D3
5
PC4
D4
NPCS1
EBI D4
6
PC5
D5
EBI D5
7
PC6
D6
EBI D6
8
PC7
D7
EBI D7
9
PC8
NWR0/NWE
TFT LCD write enable
10
PC9
NANDOE
NAND Flash output enable
11
PC10
NANDWE
NAND Flash write enable
12
PC11
NRD
TFT LCD read enable
13
PC12
NCS3
AD12
User push-button 2
14
PC13
NWAIT
PWML0
AD10
LCD backlight control
15
PC14
NCS0
NAND Flash chip select
16
PC15
NCS1
PWML1
AD11
TFT LCD chip select
17
PC16
A21/NANDALE
NAND Flash ALE
18
PC17
A22/NANDCLE
NAND Flash CLE
19
PC18
A0/NBS0
PWMH0
RDYBSY
NAND Flash RDY/BSY
20
PC19
A1
PWMH1
TFT LCD RegSel
21
PC20
A2
PWMH2
Red LED (Power)
22
PC21
A3
PWMH3
USB Vbus detection
23
PC22
A4
PWML3
QTouch valid button SNS
24
PC23
A5
TIOA3
QTouch valid button SNSK
25
PC24
A6
TIOB3
QTouch up button SNS
26
PC25
A7
TCLK3
QTouch up button SNSK
27
PC26
A8
TIOA4
QTouch down button SNS
28
PC27
A9
TIOB4
QTouch down button SNSK
29
PC28
A10
TCLK4
AD13
QTouch left button SNS
30
PC29
A11
TIOA5
AD14
QTouch left button SNSK
31
PC30
A12
TIOB5
QTouch right button SNS
32
PC31
A13
TCLK5
QTouch right button SNSK