MC13224VR2 Datasheet, PDF (19/48 Pages) Freescale Semiconductor, Inc – Advanced ZigBee™- Compliant Platform-in-Package (PiP) for the 2.4 GHz IEEE® 802.15.4 Standard

• Status flags for various flow control and FIFO states
• Receiver detects framing errors, start bit error, break characters, parity errors, and overrun errors.
• Voting logic for improved noise immunity (16X/8X oversampling)
• Maskable interrupt request
• Time-out counter, which times out after eight non-present characters
• Receiver and transmitter enable/disable
• Low-power modes
• Baud rate generator to provide any multiple-of-2 baud rate between 1.2 kbaud and 1,843.2 kbaud
4.5 Inter-Integrated Circuit (I²C) Module
The MC13224V provides an Inter-Integrated Circuit (I²C) module for the I²C which is a two-wire, serial
data (SDA) and serial clock (SCL), bidirectional serial bus. The I²C allows for data exchange between the
MC13224V and other devices such as MCUs, serial EEPROM, serial ADC and DAC devices, and LCDs.
The I²C minimizes interconnections between devices and is a synchronous, multi-master bus that allows
additional devices to be connected and still handle system expansion and development. The bus includes
collision detection and arbitration to prevent data corruption if two or more masters attempt to
simultaneously control the I²C.
The I²C module is driven by the peripheral bus clock (typically 24 MHz) and the SCL bit clock is
generated from a prescaler. The prescaler divide ratio can be programmed from 61,440 to 160 (decimal)
which gives a maximum bit clock of 150 kbps.
The I²C module supports the following features:
• Two-wire (SDA and SCL) interface
• Multi-master operation
• Master or slave mode
• Arbitration lost interrupt with automatic mode switching from master to slave
• Calling address identification interrupt
• START and STOP signal generation/detection
• Acknowledge bit generation/detection
• Bus busy detection
• Software-programmable bit clock frequency up to 150 kbps
• Software-selectable acknowledge bit
• On-chip filtering for spikes on the bus
4.6 Serial Peripheral Interface (SPI) Modules
The MC13224V has two SPI modules that use a common architecture
MC13224V Product Preview, Rev. 1.0
Freescale Semiconductor
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