EFM32TG210F32 Energy Micro, EFM32TG210F32 Datasheet - Page 23

• Manufacturer Part Number: EFM32TG210F32
• Description: MCU 32BIT 32KB FLASH 32-QFN
• Manufacturer: Energy Micro
• Series: Tiny Geckor

Specifications of EFM32TG210F32

• Core Processor: ARM® Cortex-M3™
• Core Size: 32-Bit
• Speed: 32MHz
• Connectivity: EBI/EMI, I²C, IrDA, SmartCard, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, DMA, POR, PWM, WDT
• Number Of I /o: 24
• Program Memory Size: 32KB (32K x 8)
• Program Memory Type: FLASH
• Ram Size: 4K x 8
• Voltage - Supply (vcc/vdd): 1.8 V ~ 3.8 V
• Data Converters: A/D 4x12b, D/A 1x12b
• Oscillator Type: External
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 32-VQFN Exposed Pad
• Processor Series: EFM32
• Core: ARM Cortex-M3
• Data Bus Width: 32 bit
• Data Ram Size: 32 KB
• Interface Type: UART, I2C, SPI
• Maximum Clock Frequency: 32 MHz
• Number Of Programmable I/os: 17
• Number Of Timers: 1
• Operating Supply Voltage: 1.8 V to 3.8 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Processor To Be Evaluated: EFM32TG210
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Lead Free Status / Rohs Status: Details

6 DBG - Debug Interface
6.1 Introduction
6.2 Features
6.3 Functional Description
6.4 Debug Lock and Device Erase
2010-12-21 - d0034_Rev0.90
The EFM32TG devices include hardware debug support through a 2-pin serial-wire debug interface. In
addition there is also a 1-wire Serial Wire Viewer pin which can be used to output profiling information,
data trace and software-generated messages.
• Flash Patch and Breakpoint (FPB) unit
• Data Watch point and Trace (DWT) unit
• Instrumentation Trace Macrocell (ITM)
There are three debug pins on the device, which also can be used as GPIO. The three debug pins are:
• SWCLK Serial Wire Clock input. This pin is enabled after reset and has a built-in pull down.
• SWDIO Serial Wire data Input/Output. This pin is enabled after a reset and has a built in pull-up.
• SWO Serial Wire Viewer Output. This pin is disabled after a reset.
For more information on how to enable the debug pin outputs/inputs the reader is referred to
Section 28.3.4.1 (p. 453) , the ARM Cortex-M3 Technical Reference Manual and the ARM CoreSight
Technical Reference Manual
The debug access to the Cortex-M3 is locked by clearing the Debug Lock Word (DLW), see
Section 7.3.2 (p. 29)
0 1 2 3
• Implement breakpoints and code patches
• Implement watch points, trigger resources, and system profiling
• Application-driven trace source that supports printf style debugging
ARM Cor t e x- M 3
4
DBG
De bu g Da t a
...the world's most energy friendly microcontrollers
23
What?
The DBG (Debug Interface) is used to
program and debug EFM32TG devices.
Why?
The Debug Interface makes it easy to re-
program and update the system in field, and
allows debugging with minimal I/O pin use.
How?
The Cortex-M3 supports advanced
debugging features. EFM32TG devices
only use two port pins for debugging or
programming. The systems internal and
external state can be examined with debug
extensions supporting instruction or data
access break- and watch points.
Quick Facts
www.energymicro.com