PIC24HJ256GP210A-I Datasheet, PDF (167/326 Pages) Microchip Technology – 16-bit Microcontrollers with Advanced Analog

PIC24HJXXXGPX06A/X08A/X10A
17.2 ²C 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/wwwproducts/
Devices.aspx?dDocName=en546061
17.2.1 KEY RESOURCES
• Section 11. “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,
whereas I2CxRCV is the buffer register to which data
bytes are written, or from which data bytes are read.
I2CxRCV is the receive buffer. 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.
 2009-2012 Microchip Technology Inc.
DS70592D-page 167