SM320C6457-HIREL Datasheet, PDF (110/209 Pages) Texas Instruments – SM320C6457-HIREL Communications Infrastructure Digital Signal Processor

SM320C6457-HIREL
SPRS948 – JULY 2016
www.ti.com
4.8.8 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.
4.8.8.1 I²C Device-Specific Information
The C6457 device includes an I²C peripheral module. NOTE: when using the I²C module, ensure there
are external pullup resistors on the SDA and SCL pins.
The I²C modules on the C6457 may be used by the DSP to control local peripheral 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:
• 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-bit 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 4-40 shows a block diagram of the I²C module.
110 Specifications
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