CSR8670 datasheet(10/27 Pages) BUDDIES

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BTM8670 DATASHEET

Pin#

Pin Name

Pad Type

Description

1 CAP_SENSE_5

Analogue input

Capacitive touch sensor input

CAP_SENSE_2

Analogue input

Capacitive touch sensor input

3 CAP_SENSE_0

Analogue input

Capacitive touch sensor input

4 GND

Ground

Digital Ground

AIO_1

Bi-directional

Analogue programmable input / output line

PCM_IN/PIO_17

Bi-directional with weak

pull_down

Synchronous data input. Alternative function

PIO[17]

PCM_CLK/PIO_20

Bi-directional with weak

pull_down

Synchronous data clock. Alternative function

PIO[20]

PCM_SYNC/PIO_19

Bi-directional with weak

pull_down

Synchronous data sync. Alternative function

PIO[19]

PCM_OUT/PIO_18

Bi-directional with weak

pull_down

Synchronous data output. Alternative

function PIO[18]

BT_RESET

Input with strong pull-up

Reset if low. Input debouched so

must be low for >5ms to cause a reset

SPI_CLK

Input with weak pull-down

SPI Clock

SPI_MOSI

Input with weak pull-down

SPI data input

SPI_CSB

Input with strong pull-up

Chip select for SPI, active low

SPI_MISO

Output with weak pull-down

SPI data output

UART_RTS

Bi-directional with weak

pull_up

UART request to send, active low.

Alternative function PIO[16]

SPI_CTS

Bi-directional with weak

pull_down

UART clear to send, active low

UART_RX

Bi-directional with strong

pull_up

UART data input

UART_TX

Bi-directional with weak

pull_up

UART data output

GND

Ground

Digital Ground

LED_0

Open drain

LED driver

Alternative function PO[29]

LED_1

Open drain

LED driver

Alternative function PO[30]

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