Datasheet > LMX9838_0709

LMX9838_0709

更新时间： 2022-04-23 23:00:11

品牌	Logo	应用领域
美国国家半导体 - NSC		蓝牙
页数	文件大小	规格书
30页	1165K
描述
Bluetooth㈢ Serial Port Module

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数据手册

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LMX9838_0709 数据手册

7.0 Connection Diagram

30027914

8.0 Pad Description

TABLE 1. System Interface Signals

Default Layout

Pad Name

Pad Location

Type

Description

OP3

OP3: Pin checked during Startup Sequence for configuration option

OP4: I

PG4: I/

OP4: Pin checked during Startup Sequence for configuration option

PG4: GPIO

OP4/PG4

OP5

32K-

32K+

I/O

OP5: Pin checked during Startup Sequence for configuration option

NC (if not used) 32.768 kHz Crystal Oscillator

GND (if not used) 32.768 kHz Crystal Oscillator

TABLE 2. UART Interface Signals

Pad Name

Pad Location

Type

Default Layout

Description

RXD

Host Serial Port Receive Data

Host Serial Port Transmit Data

TXD

RTS# (Note 2)

CTS# (Note 3)

NC (if not used) Host Serial Port Request To Send (active low)

GND (if not used) Host Serial Port Clear To Send (active low)

Note 2: Treat As No Connect If RTS is not used. Pad required for mechanical stability.

Note 3: Connect to GND if CTS is not use.

TABLE 3. Auxiliary Ports Interface Signals

Default Layout

Pad Name

Pad Location

Type

Description

Low active, either Module Reset (active low)

RESET#

NC or connect to

host

Host main Clock Request. Toggles with Main crystal (X1) enable/

disable

XOSCEN

PG6

PG7

I/O

GPIO - Default setup LINK STATUS indication

GPIO - Default setup RF traffic LED indication

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