User Manual
BM23SPKA1NB9
Version: 0.94 - 6 - 22/9/2014
25
P
SYS_PWR
System Power Output
BAT mode: 3.3~4.2V
Adapter mode: 4.0V
26
P
BK_OUT
Power output, 1v8 pin, no need to add power to this
pin
27
P
MFB
1. Power key when in off mode
2. UART_RX_IND: MCU use to wakeup BT
28
P
LED1
LED Driver 1, 4mA max
29
P
LED2
LED Driver 2, 4mA max
30
I/O
P24
GPIO, default input with internal pull high
System Configuration: (with the combination of P20
and EAN)
Low: boot Mode when P20=low, EAN=high
31
I/O
P02
GPIO, default pull-high input
32
I/O
P03
GPIO, default pull-high input
33
O
HCI_TXD
HCI TX data, output pin, BT to send data
34
I
HXI_RXD
HCI RX data, input pin, BT to receive data
35
I/O
P05
GPIO, default pull-high input
36
I/O
P27
GPIO, default pull-high input
37
I/O
P20
GPIO, default pull-high input
38
I/O
P30
GPIO, default pull-high input
39
I/O
P20
GPIO, default pull-high input
System Configuration, H: Application L:
Baseband(IBDK Mode)
40
P
GND
Ground.
41
A
ANT1
Antenna enhancement .
42
A
ANT2
Antenna enhancement .
43
A
ANT3
Antenna enhancement .