CC2480_11 Datasheet, PDF (19/48 Pages) Texas Instruments – Z-Accel 2.4 GHz ZigBee Processor

CC2480
7 Circuit Description
DIGITAL
ANALOG
MIXED
32K_XOSC_Q2
32K_XOSC_Q1
XOSC_Q2
XOSC_Q1
RESET_N
32 MHz
CRYSTAL OSC
32.768 kHz
CRYSTAL OSC
RESET
HIGH SPEED
RC-OSC
32 kHz RC-OSC
CLOCK MUX &
CALIBRATION
ON-CHIP VOLTAGE
REGULATOR
VDD (2.0 - 3.6 V)
DCOUPL
POWER ON RESET
BROWN OUT
SLEEP TIMER
SLEEP MODE CONTROLLER
GPIO3
GPIO2
GPIO1
GPIO0
A1
A0
GP
I/O
DMA
8051 CPU
CORE
MEMORY
ARBITRATOR
128 KB
FLASH
8 KB
SRAM
∆Σ ADC
AUDIO / DC
2 CHANNELS
IRQ
FLASH
AES
CTRL
WRITE
ENCRYPTION
&
DECRYPTION ^{DEMODULATOR AGC MODULATOR}
SRDY
MRDY
SI/TX
SO/RX
SS/CT
C/RT
USART
RECEIVE
CHAIN
TRANSMIT
CHAIN
RF_P RF_N
Figure 4: CC2480 Block Diagram
A block diagram of CC2480 is shown in Figure
4. The modules can be roughly divided into
one of three categories: CPU-related modules,
modules related to power and clock
distribution, and radio-related modules. CC2480
features an IEEE 802.15.4 compliant radio
based on the leading CC2420 transceiver. See
Section 10 for details.
CC2480 Data Sheet SWRS074A
Page 19 of 43