Arm Cortex-M3 - Texas Instruments SimpleLink CC2620 Technical Reference Manual

Overview
The CC26xx and CC13xx devices have the following features:
• ARM Cortex-M3 processor core
– 48-MHz RC oscillator and 24-MHz xtal oscillator with internal doubler
– 32-kHz xtal oscillator, 32-kHz RC oscillator or low-power 24-MHz xtal derivate clock for timing
maintenance while in low-power modes
– ARM Cortex SysTick timer
– Nested vectored interrupt controller (NVIC)
• On-chip memory
– Flash with 8KB of 4-way set-associative cache RAM for speed and low power
– System RAM with configurable retention in 4-KB blocks
• Power management
– Wide supply voltage range
– Efficient on-chip DC-DC converter for reduced power consumption
– High granularity clock gating and power gating of device parts
– Flexible frequency of operation
• Flexible low-power modes allowing low energy consumption in duty cycled applications
• Sensor interface
– Autonomous, intelligent sensor interface that can wake up independently of the main CPU system
to perform sensor readings, collect data, and determine if the main CPU must be woken
– 12-bit analog-to-digital converter (ADC) with eight analog input channels
– Low-power analog comparator
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– SPI or I C master bit-banged
• Advanced serial integration
– Universal asynchronous receiver and transmitter (UART)
– Inter-integrated circuit (I2C) module
– Synchronous serial interface modules (SSIs)
– Audio interface I2S module
• System integration
– Direct memory access (DMA) controller
– Four 32-bit timers (up to eight 16-bit) with pulse width modulation (PWM) capability and
synchronization
– 32-kHz real-time clock (RTC)
– Watchdog timer
– On-chip temperature and supply voltage sensing
– GPIO with normal or high-drive capabilities
– GPIOs with analog capability for ADC and comparator
– Fully flexible digital pin muxing allows use as GPIO or any peripheral function
• IEEE 1149.7 compliant 2-pin cJTAG with legacy 1149.1 JTAG support
• 4-mm × 4-mm, 5-mm × 5-mm, and 7-mm × 7-mm QFN packages
For applications requiring extreme conservation of power, the CC26xx and CC13xx devices feature a
power-management system to efficiently power down the CC26xx or CC13xx devices to a low-power state
during extended periods of inactivity. A power-up and power-down sequencer, a 32-bit sleep timer (a real-
time clock [RTC]), with interrupt and 20KB of RAM with retention in all power modes positions the CC26xx
and CC13xx microcontroller perfectly for battery applications.
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Architectural Overview
Copyright © 2015, Texas Instruments Incorporated
SWCU117C – February 2015 – Revised September 2015
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