ZAXM-201-1-ES CEL, ZAXM-201-1-ES Datasheet - Page 4

• Manufacturer Part Number: ZAXM-201-1-ES
• Description: Zigbee / 802.15.4 Modules & Development Tools Apex Zigbee 100mW Engineer Sample
• Manufacturer: CEL

Specifications of ZAXM-201-1-ES

• Wireless Frequency: 2.4 GHz to 2.5 GHz
• Interface Type: SPI, I2C, UART
• Security: 128 bit AES
• For Use With/related Products: XAP2b
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

APEX MODULE MICROPROCESSOR
APEX modules provide 16 GPIO ports that are shared with other peripheral or alternate functions. The alternate functions
can be utilized on a variety of different GPIOs as detailed on the following page in the Table of Pin Assignments. All the
GPIO pads are selectable as input, output, or bi-directional and have an internal pull-up or pull-down.
The integrated Serial Controller SC1 can be configured for SPI (master-only), I
Serial Controller SC2 can be configured for SPI (master or slave) or I
sample analog signals from three GPIO pins single-ended or differentially. The integrated voltage reference VREF for the
ADC can be made available to a GPIO port.
Please consult the Ember EM250 datasheet for details on configuring and controlling the information flow of the APEX
module interface ports to setup the following:
ANTENNA
The APEX module includes an integrated PCB trace antenna. An
optional MMCX connector can be specified, enabling connection to a
50-ohm external antenna of the user’s choice. See Ordering
Information.
The PCB antenna employs an F-Antenna topology that is compact and
supports an omni-directional radiation pattern.To maximize antenna efficiency, an adequate ground plane must be provided
on the host PCB. If positioned correctly, the ground plane on the host board under the module can contribute significantly
to antenna performance.
The position of the module on the host board and overall design of the product enclosure contribute to antenna perfor-
mance. Poor design effects radiation patterns and can result in reflection, diffraction, and/or scattering of the transmitted
signal. Measured radiation patterns of these modules are available from California Eastern Labs and can be used to
benchmark design performance.
Here are some design guidelines to help ensure antenna performance:
• Never place the ground plane or route copper traces directly underneath the antenna portion of the module.
• Never place the antenna close to metallic objects.
• In the overall design, ensure that wiring and other components are not placed near the antenna.
• Do not place the antenna in a metallic or metallized plastic enclosure.
• Keep plastic enclosures 1 cm or more from the antenna in any direction.
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GPIO Data Registers
Alternate function routing
External Interrupts
Serial Controller SC1 module (UART mode, SPI Master mode, I
Serial Controller SC2 module (SPI modes, I
General Purpose Timers
ADC Module
Event Manager
2
C Master mode)
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2
C (master-only) operation. The integrated ADC can
2
C Master mode)
2
C (master-only), or UART functionality. The
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ZAXM-200 Series
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