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PIC32MX1XX_12 Datasheet, PDF (171/328 Pages) Microchip Technology – 32-bit Microcontrollers (up to 128 KB Flash and 32 KB SRAM) with Audio and Graphics Interfaces, USB, and Advanced Analog | |||
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17.0 INTER-INTEGRATED
CIRCUIT⢠(I2Câ¢)
Note 1: 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. âInter-
Integrated Circuit⢠(I2Câ¢)â (DS61116)
in the âPIC32 Family Reference Manualâ,
which is available from the Microchip web
site (www.microchip.com/PIC32).
2: Some registers and associated bits
described in this section may not be
available on all devices. Refer to
Section 4.0 âMemory Organizationâ in
this data sheet for device-specific register
and bit information.
PIC32MX1XX/2XX
The I2C module provides complete hardware support
for both Slave and Multi-Master modes of the I2C serial
communication standard. Figure 17-1 illustrates the
I2C module block diagram.
Each I2C module has a 2-pin interface: the SCLx pin is
clock and the SDAx pin is data.
Each I2C module offers the following key features:
⢠I2C interface supporting both master and slave
operation
⢠I2C Slave mode supports 7-bit and 10-bit addressing
⢠I2C Master mode supports 7-bit and 10-bit
addressing
⢠I2C port allows bidirectional transfers between
master and slaves
⢠Serial clock synchronization for the I2C port can
be used as a handshake mechanism to suspend
and resume serial transfer (SCLREL control)
⢠I2C supports multi-master operation; detects bus
collision and arbitrates accordingly
⢠Provides support for address bit masking
ï£ 2011-2012 Microchip Technology Inc.
Preliminary
DS61168E-page 171
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