Phytec phyCORE-i.MX35, Hardware Manual

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phyCORE-i.MX35
82 
PHYTEC Messtechnik GmbH 2010 L-734e_1
15.3.4 Keypad Interface
CAN- PLD
VCC LCD
C
D
A
B
SJ
C-M
od
e
1
1
1
1
1
CAN- pwr
CAN- by
Power On
Suspend
Reset
St andby
At
te
nt
io
n s
ee m
an
ua
l
RS
232 aut
os
hut
dow
n
P1
VC
C C
F
1
MAI N- LI - Cell
BACKUP- LI - Cell
5V DC 3A
DI
SPL
AY
MATRI X KEYBOARD
JTAG
CAN
USB-
OTG
SER
IA
L 1
+2
1-
WIR
E
CO
MPAC
T FL
AS
H
MM
C-S
D
CAM
ER
A
LCD- SW
RS
232
d
is
abl
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USB
Line OUT Line I N MIC
CHARGER
GPI O
VI N
3V3
5V
Char ging
X18
A
B
1
1 2
2
3 4 6 5
8 7 6 5 4 3
8 7
Figure 22: phyCORE-i.MX Carrier Board Keypad Interface
Although the phyCORE-i.MX Carrier Board supports a 6x6 keypad matrix interface, the i.MX35
module only provides a 4x4 matrix. So only the first four of the row and column lines (ROW0 to ROW3
and COL0 to COL3) are used.