PAC5253_17 Datasheet, PDF (56/71 Pages) Active-Semi, Inc – Power Application Controller

PAC5253
Power Application Controller
18. SERIAL INTERFACE
18.1. Block Diagram
Figure 18-1. Serial Interface
SCL
SDA
TX
RX
SPICLK
SPIMISO
SPIMOSI
SPICS0, 1, 2
SERIAL INTERFACE
I²C
I²C
MASTER
I²C
SLAVE
UART
16550-COMPATIBLE
UART
SPI
SPI
MASTER
SPI
SLAVE
18.2. Functional Description
The device has up to three serial interfaces: I²C, UART, and SPI.
18.2.1. I²C Controller
The I²C controller is a configurable peripheral that can support various modes of operation:
 I²C master operation
 Normal mode (100kHz), fast mode (400kHz), or fast mode plus (1MHz)
 Single and multi-master
 Synchronization (multi-master)
 Arbitration (multi-master)
 7-bit or 10-bit slave addressing
 I²C slave operation
 Normal mode (100kHz), fast mode (400kHz), or fast mode plus (1MHz)
 Clock stretching
 7-bit or 10-bit slave addressing
The I²C peripheral may operate either by polling, or can be configured to be interrupt driven for both receive and transmit
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Rev 1.18‒December 29, 2016