Filter
Top Products
Appendix B – Schematics
6-6 AT91EB42 Evaluation Board User Guide
Figure 6-5. Push Buttons, LEDs and Serial Interface
VCC3V3 VCC3V3
VCC3V3
VCC3V3
VCC3V3
VCC3V3
VCC3V3
VCC3V3
VCC3V3
VCC3V3
VCC3V3
VCC3V3
VCC3V3
VCC3V3
VCC3V3
VCC3V3
VCC3V3
VCC3V3
VCC3V3
VCC3V3
VCC3V3
VCC3V3
VCC3V3
VCC3V3
VCC3V3
Usart 0:
SERIAL
A
Usart 1:
SERIAL
B
VALID
RS232
on
IOB
VALBP
DSR0
RTS0
CTS0
DTR0
DCD0
TX0
RX0
TX1
VAL_RS232
RX1
VALBP VALBP
PA9 TXD1
PB9
PB15
PB12
PA7 RXD0
PB13
PA10 RXD1
PB11
PA[6..7]
TIOA0PB7
PB[6..15]
IRQ0PA0
PB8
PB6 TCLK0
PB14
TXD0PA6
PB10
PA0
PA[9..10]
PA7
PB21 TCLK5
R3
100K
C10
47nF
SW1
TP 33
R4
100K
C11
47nF
SW2
TP 33
R14
100K
SW3
TP 33
C14
47nF
D1
Red LED
R6
100R
D2 R7
100R
D3 R8
100R
D4 R9
100R
D5 R10
100R
R11
100R
D6
R12
100R
D7
D8 R13
100R
U8
74LV244D
GND SIGNAL
VCC3V3
EN
EN
1
2
4
6
8
19
11
13
15
17 3
10
5
7
9
12
14
16
18
20
C17
100nF
C19
100nF
C18
100nF
C22
100nF
C21
22pF
P3
Sub D 9b F
5
9
4
8
3
7
2
6
1
C20
22pF
C23
22pF
C26
22pF
C27
22pF
R16
100k
P4
Sub D 9b M
5
9
4
8
3
7
2
6
1
C25
10nF
R17
100K
C13
100nF
C12
100nF
1 2
C16
100nF
JP2
jumper_NO
1
2
JP3
jumper_NO
1
2
C24
22pF
R5
100k
U9
74LV125D
EN
14
7
1
2
4
5
10
9
13
12
3
6
8
11
R75
100R
R73
100R
R76
100R
D32
GREEN LED
R74
100R
D30
ORANGE LED
U10
MAX3223ECAP
EN
1
FORCEON
14
FORCEOFF
20
INVALID
11
GND
18
R1IN
16
R2IN
9
R1OUT
15
R2OUT
10
T1IN
13
T2IN
12
T1OUT
17
T2OUT
8
C1+
2
C1-
4
C2+
5
C2-
6
V+
3
V-
7
VCC
19
R42
100k
R43
100k
R44
100k
R15
100K
SW4
TP 33
C15
47nF
D31
GREEN LED
D29
ORANGE LED
R45
100k
PB[6..15]
PA[6..7]
PA0
PA[9..10]
PB21