Texas Instruments OMAP5912 Reference Manual page 43

Multimedia processor device overview and architecture
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Serial Port Interface (SPI)
Inter-Integrated Circuit (I
2
Figure 15.
I
C System Overview
Interrupt
handler
Local host
(DSP,MPU)
System
DMA
SPRU748A
The serial port interface is a bidirectional, four-line interface dedicated to the
transfer of data to and from external devices offering a four-line serial interface.
2
C)
2
The multimaster I
C peripheral provides an interface between a local host (LH)
such as an MPU or DSP processor and any I
2
connects via the I
C serial bus. External components attached to the I
can serially transmit/receive up to 8 bits of data to/from the LH device or a DMA
through the two-wire I
2
This I
C peripheral supports any slave or master I
Figure 15 shows an example of a system with multiple I
2
in which the I
C serial ports are connected together for a two-way transfer from
one device to other devices.
I2C_IRQ
I 2 C
controller
I 2 C I/F
pads
I2C_SCL
I2C_SDA
I2C_DMA_RX
I2C_DMA_TX
2
C interface.
+V DD
Pullup
resistors
R P
R P
I 2 C
compatible
device
OMAP5912 Description
2
C-bus-compatible device that
2
C-compatible device.
2
C-compatible devices
I 2 C
compatible
compatible
device
device
I 2 C
compatible
device
Introduction
2
C bus
I 2 C
43

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