Evaluation Kit Hardware
4.3.3.9
1-Wire EEPROM
The EK board also features a 1-Wire device acting as a “firmware label” to store information like chip
type, manufacturer’s name, production date etc.
Figure 4-28. 1-Wire on EK
VDDANA
R144
1.5k
PB18
ONE_WIRE
R145
0R
2
1
MN16
I/O
GND
NC1
NC2
NC3
NC4
3
4
5
6
DS2431P
4.3.3.10 CAN Bus
Two boards, the SAM9X35-EK and SAM9X25-EK, feature two Controller Area Network (CAN) ports with
transceiver.
CAN0 uses the same IOs (PA9, PA10) as the DBGU. A jumper, JP11, is used to select either of the
interfaces.
Open JP11 to select the CAN function.
Close JP11 to select the DBGU function.
A 3-state output buffer, MN19 is inserted in series with the output channels of the CAN transceiver,
which share IOs with the DBGU. This is necessary because the CAN transceiver does not feature
3-state outputs.
Figure 4-29. CAN on EK
CANTX0
PA10
(only for SAM9X35/SAM9X25)
R21 10k
R20 0R
8
1
MN5
RS
D
CANH
CANL
7
6
1
JP7
SIP2
2
R19
120R
3V3
5V
CON2
1
2
3
4
5
CAN0
SEL_CAN
1
MN19
OE VCC
5
VDDIOP0
5
4
EN
R
VCC
GND
3
2
VDDIOP0
6
MJM0606GE06-H
PA9
CANRX0
2
3
A
GND
Y
4
SN65HVD234DR
C20
100n
C21
10u
SN74LVC1G126DBV
PA5
CANTX1
R32
R33
10k
0R
8
1
MN6
RS
D
CANH
CANL
7
6
1
JP8
SIP2
2
R34
120R
3V3
5V
CON3
1
2
3
4
5
CAN1
VDDIOP0
R35
10k
5
EN
VCC
3
VDDIOP0
6
PA6
CANRX1
R37
0R
4
R
GND
2
MJM0606GE06-H
SN65HVD234DR
C23
C24
Evaluation Kit (EK) User Guide
100n
10u
4-35
11115A–ATARM–27-Jul-11
相关PDF资料
AT91SAM9XE-EK KIT EVAL FOR AT91SAM9XE
AT93C46D-TH-T IC EEPROM 1KBIT 2MHZ 8TSSOP
AT93C46E-TH-T IC EEPROM 1KBIT 2MHZ 8TSSOP
AT93C46Y6-10YH-1.8 IC EEPROM 1KBIT 2MHZ 8DFN
AT93C56A-10TU-2.7 IC EEPROM 2KBIT 2MHZ 8TSSOP
AT93C86AY6-10YH-1.8 IC EEPROM 16KBIT 2MHZ 8MAP
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