Data Sheet

FSC-BT826HC
7
4. PIN DEFINITION DESCRIPTIONS
21
14 15 16 17 18 19 20
13
12
11
10
9
8
7
6
5
4
3
33
22
23
24
25
26
27
28
29
30
UART_TX
PIO0
PIO4
UART_RTS
PCM_CLK
PCM_OUT
PCM_IN
PCM_SYNC
Tran/AIO0
Disc/AIO1
RESET
31
32
2
1
34
UART_RX
UART_CTS
VDD_3V3
GND
PIO12
NC
SWCLK
SW DIO
NC NC NC
GND
GND
PIO2
PIO3
PIO5
PIO6
PIO7
PIO8
PIO9
PIO10
PIO11
35
36
GND
ANT
PIO1
Figure 3：PIN description
Pin Pin Name Pad Type Description
1 UART_TX CMOS output UART data output
2 UART_RX CMOS input UART data input
3
UART_CTS CMOS input
UART clear to send active low
Alternative Function: Programmable input/output line
4 UART_RTS CMOS output
UART request to send active low
Alternative Function: Programmable input/output line
5 PCM_CLK Bi-directional Synchronous data clock
6 PCM_OUT
CMOS Output
Synchronous data output
7 PCM_IN
CMOS Input
Synchronous data input
8 PCM_SYNC Bi-directional Synchronous data Sync
9 Tran/AIO0 I/O
Host MCU change UART transmission mode. (Default)
Alternative Function: Analogue programmable I/O line.
10 Disc/AIO1 I/O
Host MCU disconnect bluetooth. (Default).
Alternative Function:
Analogue programmable I/O line.
11 RESET CMOS input
Reset if low. Input debounced so must be low for >5ms to
cause a reset.