SiM3U1xx
Preliminary Rev. 0.8
69
Table 5.3. Pin Definitions and alternate functions for SiM3U1x4
Pin Name
Type
Pi
n N
u
m
b
er
s
Cro
ssb
ar Cap
a
b
ility
(see
Po
rt
Co
nf
ig
Secti
o
n)
Po
rt Ma
tc
h
Out
put
T
ogg
le
L
ogic
Ex
te
rna
l T
rigg
e
r Input
s
Ana
log or Additiona
l
Fun
c
ti
on
s
VSS
Ground
14
VDD
Power (Core)
35
VIO
Power (I/O)
13
VREGIN
Power (Regulator)
36
VSSHD
Ground (High Drive)
2
VIOHD
Power (High Drive)
3
RESET
Active-low Reset
40
D-
USB Data–
39
D+
USB Data+
38
VBUS
USB Bus Sense
37
SWCLK
Serial Wire
24
SWDIO
Serial Wire
23
PB0.0
Standard I/O
34
XBR0
ADC0.8
CS0.7
RTC1
PB0.1
Standard I/O
33
XBR0
RTC2
PB0.2
Standard I/O
32
XBR0
ADC0.9
CS0.0
VREFGND
PB0.3
Standard I/O
31
XBR0
ADC0.10
CS0.1
VREF
PB0.4
Standard I/O
30
XBR0
ADC1.6
CS0.2
IDAC0
PB0.5
Standard I/O
29
IDAC1