CC2430 Datasheet, PDF (27/234 Pages) Texas Instruments – A True System-on-Chip solution for 2.4 GHz IEEE 802.15.4 / ZigBee-TM

CC2430
and three individually programmable
counter/capture channels each with a 16-bit
compare value. Each of the counter/capture
channels can be used as PWM outputs or to
capture the timing of edges on input signals.
See section 13.3 for details.
Timer 2 (MAC timer) is specially designed for
supporting an IEEE 802.15.4 MAC or other
time-slotted protocols in software. The timer
has a configurable timer period and an 8-bit
overflow counter that can be used to keep
track of the number of periods that have
transpired. There is also a 16-bit capture
register used to record the exact time at which
a start of frame delimiter is
received/transmitted or the exact time of which
transmission ends, as well as a 16-bit output
compare register that can produce various
command strobes (start RX, start TX, etc) at
specific times to the radio modules. See
section 13.4 for details.
Timers 3 and 4 are 8-bit timers with
timer/counter/PWM functionality. They have a
programmable prescaler, an 8-bit period value
and one programmable counter/capture
channel with a 8-bit compare value. Each of
the counter/capture channels can be used as
PWM outputs or to capture the timing of edges
on input signals. See section 13.6 for details.
USART 0 and 1 are each configurable as
either an 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. When configured as
an SPI slave they sample the input signal
using SCK directly instead of some over-
sampling scheme and are thus well-suited to
high data rates. See section 13.13 for details.
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. See
section 13.9 for details.
The ADC supports 8 to 14 bits of resolution in
a 30 kHz to 4 kHz bandwidth respectively. DC
and audio conversion with up to 8 input
channels (Port 0) is 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. See Section 13.7 for
details.
9.2 Radio
CC2430 features an IEEE 802.15.4 compliant
radio based on the leading CC2420
transceiver. See Section 14 for details.
Device
CC2430-F32
CC2430-F64
CC2430-F128
Flash
32 KB
64 KB
128 KB
Table 22: CC2430 Flash Memory Options
CC2430 PRELIMINARY Data Sheet (rev. 1.03) SWRS036A
Page 27 of 232