TMS320TCI6487
TMS320TCI6488
Communications Infrastructure Digital Signal Processor
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SPRS358F–APRIL 2007–REVISED AUGUST 2008
8.10 I2C Peripheral
The inter-integrated circuit (I2C) module provides an interface between a C64x+ DSP and other devices
compliant with Philips Semiconductors Inter-IC bus (I2C bus) specification version 2.1 and connected by
way of an I2C-bus. External components attached to this 2-wire serial bus can transmit/receive up to 8-bit
data to/from the DSP through the I2C module.
8.10.1 I2C Device-Specific Information
The TCI6487/8 device includes an I2C peripheral module (I2C). NOTE: when using the I2C module,
ensure there are external pullup resistors on the SDA and SCL pins.
The I2C modules on the TCI6487/8 may be used by the DSP to control local peripherals ICs (DACs,
ADCs, etc.) or may be used to communicate with other controllers in a system or to implement a user
interface.
The I2C port supports:
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Compatible with Philips I2C Specification Revision 2.1 (January 2000)
Fast Mode up to 400 Kbps (no fail-safe I/O buffers)
Noise Filter to remove noise 50 ns or less
7- and 10-Bit Device Addressing Modes
Multi-Master (Transmit/Receive) and Slave (Transmit/Receive) Functionality
Events: DMA, Interrupt, or Polling
Slew-Rate Limited Open-Drain Output Buffers
Figure 8-25 is a block diagram of the I2C module.
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Peripheral Information and Electrical Specifications
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