PCU9661
description
The PCU9661 is an advanced single master mode I2C-bus controller. It is a fourth generation bus controller designed for data intensive I2C-bus data transfers. It has a transmit only transfer rate of up to 5 Mbits/s using the new Ultra Fast-mode (UFm) bus with push-pull topology. The serial channel has a generous 4352 byte data buffer which makes the PCU9661 the ideal panion to any CPU that needs to transmit and receive large amounts of serial data with minimal interruptions.
The PCU9661 is an 8-bit parallel-bus to I2C-bus protocol converter. It can be configured to municate with up to 64 slaves in one serial sequence with no intervention from the CPU. The controller also has a sequence loop control feature that allows it to automatically retransmit a stored sequence.
Its onboard oscillator and PLL allow the controller to generate the clocks for the I2C-bus and for the interval timer used in sequence looping. This feature greatly reduces CPU overhead when data refresh is...
