BISM2 datasheet(9/31 Pages) LSTD

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BISM2 Bluetooth™

Hardware Integration Guide

Embedded Wireless Solutions Support

Center: http://ews-

support.lairdtech.com

www.lairdtech.com/bluetooth

Laird

Americas: +1-800-492-2320

Europe: +44-1628-858-940

Hong Kong: +852-2268-6567 x026

Signal Name

Pin No.

I/O

Voltage Level

Comments

VIHmax = 2.1 V

VIHmax = 3.7 V

UART_CTS

VILmax – 0.8 V

VIHmin = 2.1 V

VIHmax = 3.7 V

UART_RTS

VOLmax = 0.2 V

VOHmin = 2.8 V

UART_DSR

VILmax = 0.2 V

VIHmin = 2.8 V

VIHmax = 3.7 V

UART_DTR

VOLmax = 0.2 V

VOHmin = 2.8 V

Shared with GPIO3

UART_RI

I or

O/P:VOLmax = 0.2 V

VOHmin = 2.8 V

I/P: VILmax = 0.8 V

VIHmin = 2.1 V

VIHmax = 3.7 V

Direction may be programmed

UART_DCD

I or

O/P:VOLmax = 0.2 V

VOHmin = 2.8 V

I/P: VILmax = 0.8 V

VIHmin = 0.8 V

VIHmax – 3.7 V

Direction may be programmed

3.3.2.3

SPI Bus

Signal Name

Pin No.

I/O

Voltage Level

Comments

SPI_MOSI

VILmax = 0.8 V

VIHmin = 2.1 V

VIHmax = 3.7 V

Used to reprogram Flash

SPI_MISO

VOLmax = 0.2 V

VOHmin = 2.8 V

SPI_CSB

VILmax = 0.8 V

VIHmin = 2.1 V

VIHmax = 3.7 V

SPI_CLK

VILmax = 0.8 V

VIHmin = 2.1 V

VIHmax = 3.7 V

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