DSPIC30F6015 Microchip Technology Inc., DSPIC30F6015 Datasheet - Page 109

• Manufacturer Part Number: DSPIC30F6015
• Description: High-performance, 16-bit Digital Signal Controllers
• Manufacturer: Microchip Technology Inc.

17.0
The Inter-Integrated Circuit™ (I
complete hardware support for both Slave and Multi-
Master modes of the I
standard, with a 16-bit interface.
This module offers the following key features:
• I
• I
• I
• I
• Serial clock synchronization for I
• I
FIGURE 17-1:
17.1.3
I2CCON and I2CSTAT are control and STATUS regis-
ters, respectively. The I2CCON register is readable and
writable. The lower 6 bits of I2CSTAT are read-only.
The remaining bits of the I2CSTAT are read/write.
I2CRSR is the shift register used for shifting data,
whereas I2CRCV is the buffer register to which data
bytes are written, or from which data bytes are read.
I2CRCV is the receive buffer, as shown in Figure 16-1.
I2CTRN is the transmit register to which bytes are written
during a transmit operation, as shown in Figure 16-2.
© 2007 Microchip Technology Inc.
Note: This data sheet summarizes features of this
group of dsPIC30F devices and is not intended to be
a complete reference source. For more information
on the CPU, peripherals, register descriptions and
general device functionality, refer to the “dsPIC30F
Family Reference Manual” (DS70046).
operation.
master and slaves.
used as a handshake mechanism to suspend and
resume serial transfer (SCLREL control).
collision and will arbitrate accordingly.
2
2
2
2
2
C interface supporting both Master and Slave
C Slave mode supports 7 and 10-bit address.
C Master mode supports 7 and 10-bit address.
C port allows bidirectional transfers between
C supports multi-master operation; detects bus
I
2
C™ MODULE
I
2
C REGISTERS
bit 15
bit 15
PROGRAMMER’S MODEL
2
C serial communication
2
C™) module provides
2
C port can be
bit 9
bit 8
bit 7
bit 7
dsPIC30F6010A/6015
17.1
The hardware fully implements all the master and
slave functions of the I
specifications, as well as 7 and 10-bit addressing.
Thus, the I
a master on an I
17.1.1
The following types of I
• I
• I
• I
See the I
17.1.2
I
is data.
The I2CADD register holds the slave address. A Status
bit, ADD10, indicates 10-bit Address mode. The
I2CBRG acts as the Baud Rate Generator reload value.
In receive operations, I2CRSR and I2CRCV together
form a double-buffered receiver. When I2CRSR receives
a complete byte, it is transferred to I2CRCV and an inter-
rupt pulse is generated. During transmission, the
I2CTRN is not double-buffered.
2
C has a 2-pin interface; pin SCL is clock and pin SDA
Note:
2
2
2
C Slave operation with 7-bit address
C Slave operation with 10-bit address
C Master operation with 7 or 10-bit address
bit 0
bit 0
bit 0
bit 0
bit 0
bit 0
Operating Function Description
2
C programmer’s model in Figure 17-1.
2
C module can operate either as a slave or
VARIOUS I
PIN CONFIGURATION IN I
Following a Restart condition in 10-bit
mode, the user only needs to match the
first 7-bit address.
I2CRCV (8 bits)
I2CTRN (8 bits)
I2CBRG (9 bits)
I2CCON (16 bits)
I2CSTAT (16 bits)
I2CADD (10 bits)
2
C bus.
2
C operation are supported:
2
2
C Standard and Fast mode
C MODES
DS70150C-page 107
2
C MODE