User guide

BTM-600 Pins Function
No. Pin Name Pin T
yp
e Pin descri
p
tion
1 GND GND Common
g
round
2 +V
_
P
A
Powe
r
Power Am
p
. Power Su
pp
l
y(
3.3V
)
3 1.8
V
Powe
r
1.8V Internal Power Out
p
ut
4
V
DD Powe
r
PIO
p
ower su
pp
l
y
in
p
ut
(
3.3V or 1.8V
)
5 AIO
[
0
]
Bi-directional Pro
g
rammable In
p
ut/Out
p
ut Line
6 AIO
[
1
]
Bi-directional Pro
g
rammable In
p
ut/Out
p
ut Line
7 UART
_
RTS CMOS out
p
ut UART re
q
uest to send
(
active low
)
8 UART
_
TX CMOS out
p
ut UART data out
p
ut
9 UART
_
RX CMOS in
p
ut UART data in
p
ut
10 UART
_
CTS CMOS in
p
ut UART clear to send
(
active low
)
11 USB
_
DN Bi-directional USB data minus
12 USB
_
DP Bi-directional USB data
p
lus
13 PCM
_
SYNC Bi-directional S
y
nchronous data s
y
nc
14 PCM
_
IN CMOS in
p
ut S
y
nchronous data in
p
ut
15 PCM
_
CL
K
Bi-directional S
y
nchronous data clock
16 PCM
_
OUT CMOS out
p
ut S
y
nchronous data out
p
ut
17 PIO
[
7
]
Bi-directional Pro
g
rammable I/O terminal
18 PIO
[
6
]
Bi-directional Pro
g
rammable I/O terminal
19 PIO
[
5
]
Bi-directional Pro
g
rammable I/O terminal
20 PIO
[
4
]
Bi-directional Pro
g
rammable I/O terminal
21 RESETB CMOS in
p
ut Reset in
p
ut
(
A
ctive low
)
22
V
BAT Powe
r
Batter
y
p
ower in
p
ut
23
V_
CHG Powe
r
Lithium lion batter
y
char
g
er in
p
ut
24 GND GND Common
g
round
25 SPI
_
MISO CMOS out
p
ut Serial Peri
p
heral Interface data out
p
ut
26 SPI
_
CL
K
CMOS in
p
ut Serial Peri
p
heral Interface clock
27 SPI
_
CSB CMOS in
p
ut Chi
p
select for S
y
nchronous Serial Interface
(
active low
)
28 SPI
_
MOSI CMOS in
p
ut Serial Peri
p
heral Interface data in
p
ut
29 LED
[
1
]
O
p
en drain out
p
ut Current sink to drive LED
30 LED
[
0
]
O
p
en drain out
p
ut Current sink to drive LED
31 PIO
[
8
]
Bi-directional Pro
g
rammable I/O terminal
32 PIO
[
9
]
Bi-directional Pro
g
rammable I/O terminal
33 PIO
[
10
]
Bi-directional Pro
g
rammable I/O terminal
34 PIO
[
11
]
Bi-directional Pro
g
rammable I/O terminal
35 PIO
[
3
]
Bi-directional Pro
g
rammable I/O terminal
36 PIO
[
2
]
Bi-directional Pro
g
rammable I/O terminal
,
external CLK
_
REQ
37 PIO
[
1
]
Bi-directional Pro
g
rammable I/O terminal
,
TX Enable
38 PIO
[
0
]
Bi-directional Pro
g
rammable I/O terminal
,
RX Enable
39 GND GND Common
g
round
40 RF
_
IO Analo
g
ue
A
ntenna interface
41 GND GND Common
g
round
42 NC No Connection Reserved
43
V
REG
_
EN CMOS in
p
ut Internal Re
g
ulator enable control in
p
ut
44 SPK
_
N Analo
g
ue S
p
eaker out
p
ut ne
g
ative
45 SPK
_
P Analo
g
ue S
p
eaker out
p
ut
p
ositive
46 MIC
_
N Analo
g
ue Micro
p
hone in
p
ut ne
g
ative
47 MIC
_
P Analo
g
ue Micro
p
hone in
p
ut
p
ositive
48 GND GND Common
g
round