Specifications

8
1.6 Device Terminal Functions
Pin No Function Iinput / Output Power Domain Description
1 GND - N/A Ground
2 HCI_UART_RTS O VDDO UART request to send ouput
3 HCI_UART_CTS I VDDO UART clear to send input
4 HCI_UART_TXD O VDDO UART transmit data
5 HCI_UART_RXD I VDDO UART receive data
6 GND - N/A Ground
7 VCC I N/A
VBAT input pin. This must be less than or equal to VDDO.
8 GND - N/A Ground
9 BT_OTP_3P3V_ON I N/A 3.3V OTP supply voltage
10 GND - N/A Ground
11 GND - N/A Ground
GPIO_P4 I/O GPIO_P4
GPIO_P24 I/O GPIO: P24
GPIO_1 O VDDO
BT_GPIO_1/BT_HOST_WAKE A signal from the
CYW20706 device to the host indicating that the
Bluetooth device requires attention.
P25 I/O VDDO GPIO: P25
P32
ADC_7
I/O VDDO
GPIO: P32
A/D converter input 7
GPIO_0 I VDDO
BT_GPIO_0/BT_DEV_WAKE A signal from the host to
the CYW20706 that the host requires attention.
P36
ADC_3
I/O VDDO
GPIO: P36
A/D converter input 3
Auxiliary Clock Output: ACLK0
P38
ADC_1
I/O VDDO
GPIO: P38
A/D converter input 1
15 GND - N/A Ground
I2S_WS I/O VDDO PCM sync/I2S word select
P0
ADC_29
I/O VDDO
GPIO: P0
A/D converter input 29
P34
ADC_05
I/O VDDO
GPIO: P34
A/D converter input 5
17
12S_DI
I2C_SDA
I/O VDDO
PCM/I2S data input.
I2C_SDA
GPIO_12
ADC_23
I/O VDDO
GPIO: P12
A/D converter input 23
I2S_DO
I2C_SCL
I/O VDDO
PCM/I2S data output.
I2C_SCL
P3
I/O VDDO GPIO: P3
P29
ADC_10
LED_2
I/O VDDO
GPIO: P29
A/D converter input 10, LED2
Current: 16 mA sink
P35
ADC_4
I/O VDDO
GPIO: P35
A/D converter input 4
I2S_CLK I/O VDDO
PCM/I2S clock Fp1
P2 I/O VDDO
GPIO: P2
P28
ADC_11
LED_1
I/O VDDO
GPIO: P28
A/D converter input 11, LED1
Current: 16 mA sink
P37
ADC_02
I/O VDDO
GPIO: P37
A/D converter input 2
20 RECOVERY I/O VDDO
Recovery pin
21 GND - N/A Ground
22 RST_L I VDDO
Active-low reset input
23 GND - N/A Ground
24 PUART_RTS I/O VDDO Peripheral UART: puart_rts
25 PUART_CTS I/O VDDO Peripheral UART: puart_cts
26 PUART_RX I/O VDDO Peripheral UART: puart_rx
27 PUART_TX I/O VDDO Peripheral UART: puart_tx
GPIO_5 I/O VDDO General-purpose I/O
P15
ADC_20
I/O VDDO
GPIO: P15
A/D converter input 20
29 GND - N/A Ground
30 GND - N/A Ground
28
12
VDDO
13
14
16
18
19