MKW01 Simple Media Access Controller (SMAC) Reference Manual, Rev. 0.0
Freescale Semiconductor
1-5
Chapter 1
MKW01 SMAC Introduction
The Freescale MKW01 Simple Media Access Controller (MKW01 SMAC) is a simple ANSI C based
codebase available as sample source code. The MKW01 SMAC is used for developing proprietary RF
transceiver applications using Freescale’s MKW01 sub-1 GHz transceiver plus microcontroller. The
MKW01 is a system-in-package (SIP) device that includes an ARM Cortex M0+ based microcontroller
and a sub-GHz ISM band radio front-end device in an LGA-56 package. Features of the MKW01 include:
•
MCU has a 32-bit ARM Cortex M0+ CPU with a full set of peripheral functions
•
MCU has 128KB flash and 16KB SRAM
•
Full featured, programmable sub-1 GHz transceiver that supports FSK, GFSK, MSK, GMSK, and
OOK modulations schemes.
•
The MKW01 has internal and external connections between the MCU and transceiver:
—
The MCU communicates with the transceiver through an internally connected SPI port.
—
Several transceiver status bits are also internally or externally connected to MCU GPIO and are capable
of generating interrupt requests.
NOTE
It is highly recommended the SMAC user be familiar with the MKW01
device. Additional details can be found in the device data sheet (MKW01)
and the MKW01 Reference Manual (MKW01xxRM).
The MKW01 SMAC is a small codebase that provides simple communication and test applications based
on drivers, (802.15.4 compliant) PHY and framework utilities available as source code. This environment
is useful for hardware and RF debug, hardware standards certification, and developing proprietary
applications. The MKW01 SMAC is provided as part of the Example Application Demos available for
MKW01 and also as a standalone set of files.
To use any of the existing applications available in MKW01 SMAC, users must download and open the
available Application Demos in the corresponding development environment (IDE).
SMAC features include:
•
Compact footprint:
— Between 2 to 3KB of flash required, depending on configuration used.
— Less than 500 bytes RAM, depending on configuration used.
•
Very low power, proprietary, bidirectional RF communication link.
•
The MKW01 radio allows checking the preamble and the synchronization word, which reduces
software overhead and memory footprint.
