Data Sheet

深圳市飞易通科技有限公司
www.feasycom.com
FSC-BT826
8
PCM_SYNC
Bi-directional
Synchronous data Sync
9
Tran/AIO0
I/O
Host MCU change UART transmission mode. (Default)
If current UART transmission mode is command mode,
one low pulse with 80ms duration low signal will change
UART transmission mode to throughput mode, and
another low pulse could change UART transmission
mode back to command mode. Otherwise it will be set as
high always.
Alternative Function: Analogue programmable I/O line.
10
Disc/AIO1
I/O
Host MCU disconnect bluetooth. (Default)
One low pulse with 80ms duration low signal to trigger bl
uetooth disconnection.Otherwise it will be set as high alw
ays.
Alternative Function: Analogue programmable I/O line.
11
RESET
CMOS input
Reset if low. Input debounced so must be low for >5msto
cause a reset.
12
VDD_3V3
VDD
Power supply voltage 3.3V
13
GND
VSS
Power Ground
14
BOOT0
Bi-directional
The default is low. (internal 10K resistance drop)
When writing to MCU when using the serial port, this pin
is connected with the high level.
15
NC
NC
NC
16
SWCLK
Bi-directional
Debugging through the clk line(Default)
17
SWDIO
Bi-directional
Debugging through the data line(Default)
18
NC
NC
NC
19
NC
NC
NC
20
NC
NC
NC
21
GND
VSS
Power Ground
22
GND
VSS
Power Ground
23
PIO0
I/O
Programmable input/output line
* The I/O port for reuse.
24
PIO1
I/O
Programmable input/output line
*
The I/O port for reuse.
25
PIO2
I/O
Programmable input/output line
* The I/O port for reuse.