Data Sheet

7
4. PIN DEFINITION DESCRIPTIONS
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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
BOOT0
NC
SWCLK
SWDIO
PIO12
PIO13
PIO14
GND
GND
PIO1
PIO2
PIO3
PIO5
PIO6
PIO7
PIO8
PIO9
PIO10
PIO11
35
36
GND
EXT_ANT
Figure 4: FSC-BT816S PIN Diagram
Pin NO. Pin Name Type Pin Descriptions
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(Operating voltage level: 1.8V)
6 PCM_OUT CMOS output Synchronous data output(Operating voltage level: 1.8V)
7 PCM_IN CMOS input Synchronous data input(Operating voltage level: 1.8V)
8 PCM_SYNC Bi-directional Synchronous data sync(Operating voltage level: 1.8V)