User's Manual

E
hon
g
T
12
13
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16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
T
echnolo
gy
C
o
PIO0
PIO1
PCM_IN
GND
PCM_SY
N
RF_GN
D
RF_IN
RF_GN
D
PCM_CL
K
AIO0
GND
MIC_LP
MIC_LN
SPK_LN
SPK_LP
SPK_R
N
SPK_R
P
PIO13
VDD
USB_D
P
USB_D
N
GND
PIO9
PIO14
o
., Ltd 
Bi-dir
e
progr
a
intern
a
Bi-dir
e
progr
a
intern
a
CMO
S
intern
a
Groun
d
N
C
Bi-dir
e
intern
a
D
RF Gr
o
RF
D
RF Gr
o
K
Bi-dir
e
intern
a
Bi-dir
e
Groun
d
Analo
g
A
nalo
g
A
nalo
g
A
nalo
g
N
A
nalo
g
P
Analo
g
Bi-dir
e
progr
a
intern
a
3V3 p
o
P
Bi-dir
e
N
Bi-dir
e
Groun
d
Bi-dir
e
progr
a
intern
a
Bi-dir
e
progr
a
intern
a
ctional wit
h
mmable st
r
a
l pull-up/d
o
ctional wit
h
mmable st
r
a
l pull-up/d
o
S
Input, wit
h
a
l pull-dow
n
d
ctional wit
h
a
l pull-dow
n
o
und
o
und
ctional wit
h
a
l pull-dow
n
ctional
d
g
ue
g
ue
g
ue
g
ue
g
ue
g
ue
ctional wit
h
mmable st
r
a
l pull-up/d
o
o
wer input
ctional
ctional
d
ctional wit
h
mmable st
r
a
l pull-up/d
o
ctional wit
h
mmable st
r
a
l pull-up/d
o
h
r
ength
o
wn
h
r
ength
o
wn
h
weak
n
h
weak
n
h
weak
n
h
r
ength
o
wn
h
r
ength
o
wn
h
r
ength
o
wn
Progra
m
Progra
m
Synchro
n
Ground
Synchro
n
RF grou
n
RF Tran
s
RF grou
n
Synchro
n
A
nalogu
e
Ground
Microph
o
Microph
o
Speaker
Speaker
Speaker
Speaker
Progra
m
3V3 po
w
USB dat
a
1.5K pul
l
USB dat
a
Ground
Progra
m
Progra
m
B
m
mable inp
u
m
mable inp
u
n
ous Data
I
n
ous Data
S
n
d
s
ceiver inp
u
n
d
n
ous Data
C
e
program
m
o
ne input p
o
o
ne input n
e
output ne
g
output pos
output ne
g
output pos
m
mable inp
u
w
er input
a
plus with
l
up resisto
r
a
minus
m
mable inp
u
m
mable inp
u
B
luetooth Au
d
u
t/output lin
e
u
t/output lin
e
I
nput
S
ync
u
t/output lin
C
lock
m
able input
/
o
sitive, left
e
gative, rig
h
g
ative, left
itive, left
g
ative, right
itive, right
u
t/output lin
e
selectable
r
u
t/output lin
e
u
t/output lin
e
d
io Module
e
e
e
/
output line
h
t
e
internal
e
e