Data sheet

BMP183

Page 19

BST-BMP183-DS000-00 | Revision 1.0 | June 2012

Bosch Sensortec

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parties. BOSCH and the symbol are registered trademarks of Robert Bosch GmbH, Germany.

Note: Specifications within this document are subject to change without notice.

5. SPI Interface

The BMP183 features a four wire SPI interface with clock speeds of up to 10 MHz. The interface is

four wire SPI with CPOL = 1, CPHA = 1 (SPI mode 3).

measurement data when A/D conversion is finished.

5.1 SPI specification

Table 6: Electrical parameters for the SPI interface

Parameter

Symbol

Min.

Typ

Max.

Units

Clock input frequency

0.0

10.0

MHz

Input-low level

0

V

Input-high level

V

SCK low pulse

Tlow_sck4

20

ns

SCK high pulse

Thigh_sck_4

20

ns

SDI setup time

Tsetup_sdi_4

20

ns

SDI hold time

Thold_sdi_4

20

ns

SDO output delay

Tdelay_sdo_4

30

ns

CSB setup time

Tsetup_csb_4

20

ns

CSB hold time

Thold_csb_4

20

ns

Start-up time after power-up,

before first communication

10

ms