Getac Technology Corporation V110GD Manuale Utente

© 2011 Microchip Technology Inc.

DS61168C-page 173

The I

2

C module provides complete hardware support

for both Slave and Multi-Master modes of the I

2

C serial

communication standard. 

 illustrates the

I

2

C module block diagram.

Each I

2

C module has a 2-pin interface: the SCLx pin is

clock and the SDAx pin is data. 
Each I

2

C module offers the following key features:

• I

2

C interface supporting both master and slave 

operation

• I

2

C Slave mode supports 7-bit and 10-bit addressing

• I

2

C Master mode supports 7-bit and 10-bit 

addressing

• I

2

C port allows bidirectional transfers between 

master and slaves

• Serial clock synchronization for the I

2

C port can 

be used as a handshake mechanism to suspend 
and resume serial transfer (SCLREL control)

• I

2

C supports multi-master operation; detects bus 

collision and arbitrates accordingly

• Provides support for address bit masking

This data sheet summarizes the features
of the PIC32MX1XX/2XX family of
devices. It is not intended to be a
comprehensive reference source. To
complement the information in this data
sheet, refer to Section 24. “Inter-
Integrated Circuit™ (I

 (DS61116)

in the “PIC32 Family Reference Manual”,
which is available from the Microchip web
site (

Some registers and associated bits
described in this section may not be
available on all devices. Refer to

 in

this data sheet for device-specific register
and bit information.