WT21-A-HCI 查看數據表（PDF） - Unspecified

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WT21-A-HCI

BLUETOOTH HCI MODULE

Unspecified 

SPI

INTERFACE

PCM_OUT

PCM_IN

PCM_SYNC

PCM_CLK

PIN

NUMBER

36

37

34

35

PAD TYPE

DESCRIPTION

Output, tri-state, weak

internal pull-down

Synchronous data output

Input,

weak internal

down

pull-

Synchronous

data

input

Bi-directional, weak

internal pull-down

Synchronous data sync

Bi-directional, weak

internal pull-down

Synchronous data clock

Table 4: Terminal Descriptions

PIN

SDIO/CSPI/UA NUMBER

RT Interfaces

SDIO_DATA[0]

CSPI_MISO

25

UART_TX

SDIO_DATA[1]

CSPI_INT

26

UART_RTS#

SDIO_DATA[2]

UART_RX

27

SDIO_DATA[3]

CSPI_CS#

29

UART_CTS#

SDIO_CLK

CSPI_CLK

30

SDIO_SD_CS#

31

SDIO_CMD

CSPI_MOSI

32

PAD TYPE

DESCRIPTION

Bi-directional, tri- Synchronous data input/output

state, weak CSPI data output

internal pull-up UART data output, active high

Bi-directional, Synchronous data input/output

weak internal pull- CSPI data input

up

UART request to send output, active low

Bi-directional, Synchronous data input/output

weak internal pull- UART data input, active high

up

Bi-directional, Synchronous data input/output

weak internal pull- Chip select for CSR Serial Peripheral

up

Interface, active low

UART clear to send input, active low

Bi-directional, SDIO clock

weak internal pull- CSPI clock

up

Bi-directional,

weak internal pull- SDIO chip select to allow SDIO accessess

up

Bi-directional, SDIO data input

weak internal pull- CSPI data input

up

Table 5: Terminal Descriptions

Bluegiga Technologies Oy

Page 11 of 56

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