PIC24HJ32GP302_12 Datasheet, PDF (187/390 Pages) Microchip Technology – 16-bit Microcontrollers (up to 128 KB Flash and 8K SRAM) with Advanced Analog

PIC24HJ32GP302/304, PIC24HJ64GPX02/X04 AND PIC24HJ128GPX02/X04
17.2 I²C Resources
Many useful resources related to I²C are provided on
the main product page of the Microchip web site for the
devices listed in this data sheet. This product page,
which can be accessed using this link, contains the
latest updates and additional information.
Note:
In the event you are not able to access the
product page using the link above, enter
this URL in your browser:
http://www.microchip.com/wwwprod-
ucts/Devices.aspx?dDoc-
Name=en532315
17.2.1 KEY RESOURCES
• Section 19. “Inter-Integrated Circuit™ (I²C™)”
(DS70195)
• Code Samples
• Application Notes
• Software Libraries
• Webinars
• All related dsPIC33F/PIC24H Family Reference
Manuals Sections
• Development Tools
17.3 I²C Registers
I2CxCON and I2CxSTAT are control and status
registers, respectively. The I2CxCON register is
readable and writable. The lower six bits of I2CxSTAT
are read-only. The remaining bits of the I2CSTAT are
read/write:
• I2CxRSR is the shift register used for shifting data
internal to the module and the user application
has no access to it
• I2CxRCV is the receive buffer and the register to
which data bytes are written, or from which data
bytes are read
• I2CxTRN is the transmit register to which bytes
are written during a transmit operation
• The I2CxADD register holds the slave address
• A status bit, ADD10, indicates 10-bit Address
mode
• The I2CxBRG acts as the Baud Rate Generator
(BRG) reload value
In receive operations, I2CxRSR and I2CxRCV together
form a double-buffered receiver. When I2CxRSR
receives a complete byte, it is transferred to I2CxRCV,
and an interrupt pulse is generated.
© 2007-2012 Microchip Technology Inc.
DS70293G-page 187