BM20 datasheet(9/46 Pages) MICROCHIP

9 / 46 page

Stereo Module

 2015 Microchip Technology Inc.

Page 9

Preliminary Edition

Pin No.

I/O

Name

Description

GND

Ground

RST_N

System Reset Pin, active when rising edge.

VDDIO

Power output, VDDIO pin, no need to add power to this pin

I/O

P1_5

IO pin, default pull-high input

I/O

P0_1

IO pin, default pull-high input

ADAP_IN

5V power adaptor input

BAT_IN

3.3~4.2V Li-ion battery input

SYS_PWR

System Power Output

BAT mode: 3.3~4.2V

Adapter mode: 4.0V

BK_OUT

Power output, 1v8 pin, no need to add power to this pin

MFB

Power key when in off mode

UART_RX_IND: MCU use to wakeup BT

LED1

LED Driver 1, 4mA max

LED2

LED Driver 2, 4mA max

P2_4

IO pin, default pull-high input

System Configuration,

L: Boot Mode with P2_0 low combination

I/O

P0_2

IO pin, default pull-high input

I/O

P0_3

IO pin, default pull-high input

HCI_TXD

HCI-UART TX data

HCI_RXD

HCI-UART RX data

I/O

P0_5

IO pin, default pull-high input

I/O

P2_7

IO pin, default pull-high input

I/O

P2_0

IO pin, default pull-high input

I/O

P3_0

IO pin, default pull-high input

P2_0

IO pin, default pull-high input

System Configuration,

H: Application L: Baseband(IBDK Mode)

GND

Ground.

* I: signal input pin

* O: signal output pin

* I/O: signal input/output pin

* P: power pin

Note 1: These button or functions can be setup by “IS20XXS_UI” tool.

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