User's Manual

DFZM-TS2xx
Data Sheet Sheet 11 of 37 AUG 22, 2013
Proprietary Information and Specifications are Subject to Change
The ADC supports 7 to 12 bits of resolution in a 30 kHz to 4 kHz bandwidth, respectively. DC and audio
conversions with up to eight input channels (Port 0) are possible. The inputs can be selected as single-ended or
differential. The reference voltage can be internal, AVDD, or a single-ended or differential external signal. The
ADC also has a temperature-sensor input channel. The ADC can automate the process of periodic sampling or
conversion over a sequence of channels.
The operational amplifier is intended to provide front-end buffering and gain for the ADC. Both inputs as well
as the output are available on pins, so the feedback network is fully customizable. A chopper-stabilized mode is
available for applications that need good accuracy with high gain.
The ultralow-power analog comparator enables applications to wake up from PM2 or PM3 based on an analog
signal. Both inputs are brought out to pins; the reference voltage must be provided externally. The comparator
output is connected to the I/O controller interrupt detector and can be treated by the MCU as a regular I/O pin
interrupt.
The random-number generator uses a 16-bit LFSR to generate pseudorandom numbers, which can be read by
the CPU or used directly by the command strobe processor. It can be seeded with random data from noise in the
radio ADC.
The AES encryption/decryption core allows the user to encrypt and decrypt data using the AES algorithm with
128-bit keys. The core is able to support the AES operations required by IEEE 802.15.4 MAC security, the
ZigBee network layer, and the application layer.
A built-in watchdog timer allows the CC2530 to reset itself in case the firmware hangs. When enabled by
software, the watchdog timer must be cleared periodically; otherwise, it resets the device when it times out. It can
alternatively be configured for use as a general 32-kHz timer.
USART 0 and USART 1 are each configurable as either a SPI master/slave or a UART. They provide double
buffering on both RX and TX and hardware flow control and are thus well suited to high-throughput full-duplex
applications. Each has its own high-precision baud-rate generator, thus leaving the ordinary timers free for other
uses.