Digital Blocks, Inc. 
Short Desc. : APB Bus I2C Controller
Overview :
The Digital Blocks DB-I2C-APB Controller IP Core interfaces a microprocessor via the AMBA 2.0 APB Bus to an I2C Bus. The I2C is a two-wire bidirectional interface, and the DB-I2C-APB can Master or Slave the interface in either Transmit or Receive modes. Figure 1 depicts the system view of the DB-I2C-APB Controller IP Core embedded within an integrated circuit device.
Features : - Three versions available:
- Master-Slave combined
- Master only
- Slave only
- Master – Slave Modes:
- Master – Transmitter; Master – Receiver
- Slave – Transmitter; Slave – Receiver
- Supports Multi-master, Arbitration and Clock Synchronization
- Single 8-bit data buffer register or optional parameterized FIFO for higher performance
- Supports two I2C bus speeds:
- Standard mode (100 Kb/s)
- Fast mode (400 Kb/s)
- 7- or 10-bit addressing
- Digital filter for the received SDA and SCL lines
- 8 sources of internal interrupts with masking control
- Compliance with APB and I2C specifications:
- AMBA Specification (Rev 2.0), APB Bus
- Philips/NXP – The I2C-Bus Specification, Version 2.1, January 2000
- Fully-synchronous, synthesizable Verilog or VHDL RTL core, with rising-edge clocking, no gated clocks, and no internal tri-states.
Categories :
Portability :
Type : Soft
TrueCircuits: IoTPLL

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