EFR32FG12 Flex Gecko Proprietary
Protocol SoC Family Data Sheet
The Flex Gecko proprietary protocol family of SoCs is part of the
Wireless Gecko portfolio. Flex Gecko SoCs are ideal for enabling
energy-friendly proprietary protocol networking for IoT devices.
The single-die solution provides industry-leading energy efficiency, ultra-fast wakeup
times, a scalable power amplifier, an integrated balun and no-compromise MCU fea-
tures.
Flex Gecko applications include:
•
•
•
•
•
Home and Building Automation and Security
Metering
Electronic Shelf Labels
Industrial Automation
Commercial and Retail Lighting and Sensing
KEY FEATURES
• 32-bit ARM® Cortex®-M4 core with 40
MHz maximum operating frequency
• Up to 1 MB of flash and 256 kB of RAM
• Pin-compatible across EFR32FG families
(exceptions apply for 5V-tolerant pins)
• 12-channel Peripheral Reflex System,
Low-Energy Sensor Interface & Multi-
channel Capacitive Sense Interface
• Autonomous Hardware Crypto Accelerator
and True Random Number Generator
• Integrated PA with up to 19 dBm (2.4
GHz) or 20 dBm (Sub-GHz) TX power
• Integrated balun for 2.4 GHz
• Robust peripheral set and up to 65 GPIO
Core / Memory
Clock Management
High Frequency
Crystal
Oscillator
Low Frequency
RC Oscillator
LDMA
Controller
Low Frequency
Crystal
Oscillator
High Frequency
RC Oscillator
Auxiliary High
Frequency RC
Oscillator
Ultra Low
Frequency RC
Oscillator
Energy Management
Voltage
Regulator
DC-DC
Converter
Brown-Out
Detector
Voltage Monitor
Other
CRYPTO
CRC
ARM Cortex M4 processor
with DSP extensions and FPU
TM
Memory
Protection Unit
Power-On Reset
True Random
Number Generator
SMU
Flash Program
Memory
RAM Memory
Debug Interface
with ETM
32-bit bus
Peripheral Reflex System
Radio Transceiver
RFSENSE
Sub GHz
I
LNA
RF Frontend
PA
Q
DEMOD
BUFC
FRC
Serial
Interfaces
USART
I/O Ports
External
Interrupts
General
Purpose I/O
Timers and Triggers
Timer/Counter
Protocol Timer
Analog I/F
ADC
Analog
Comparator
PGA
To Sub GHz
receive I/Q
mixers and PA
IFADC
Low Energy
UART
TM
Low Energy
Timer
Watchdog Timer
Real Time
Counter and
Calendar
Cryotimer
IDAC
Capacitive Sense
VDAC
CRC
RAC
RFSENSE
AGC
I
2
C
Pin Reset
Pulse Counter
2.4 GHz
BALUN
LNA
RF Frontend
PA
Q
I
Frequency
Synthesizer
To 2.4 GHz receive
I/Q mixers and PA
MOD
Pin Wakeup
To Sub GHz
and 2.4 GHz PA
Low Energy
Sensor Interface
Op-Amp
Lowest power mode with peripheral operational:
EM0—Active
EM1—Sleep
EM2—Deep Sleep
EM3—Stop
EM4—Hibernate
EM4—Shutoff
silabs.com
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Rev. 1.4
EFR32FG12 Flex Gecko Proprietary Protocol SoC Family Data Sheet
Feature List
1. Feature List
The EFR32FG12 highlighted features are listed below.
•
Low Power Wireless System-on-Chip
• High Performance 32-bit 40 MHz ARM Cortex
®
-M4 with
DSP instruction and floating-point unit for efficient signal
processing
• Embedded Trace Macrocell (ETM) for advanced debugging
• Up to 1024 kB flash program memory
• Up to 256 kB RAM data memory
• 2.4 GHz and Sub-GHz radio operation
• Transmit power:
• 2.4 GHz radio: Up to 19 dBm
• Sub-GHz radio: Up to 20 dBm
•
Low Energy Consumption
• 8.4 mA RX current at 38.4 kbps, GFSK, 169 MHz
• 10.0 mA RX current at 1 Mbps, GFSK, 2.4 GHz
• 11 mA RX current at 250 kbps, DSSS-OQPSK, 2.4 GHz
• 8.5 mA TX current at 0 dBm output power at 2.4 GHz
• 35.3 mA TX current at 14 dBm output power at 868 MHz
• 70 μA/MHz in Active Mode (EM0)
• 1.5 μA EM2 DeepSleep current (16 kB RAM retention and
RTCC running from LFRCO)
•
High Receiver Performance
• -94.8 dBm sensitivity at 1 Mbit/s GFSK, 2.4 GHz
• -102.7 dBm sensitivity at 250 kbps DSSS-OQPSK, 2.4 GHz
• -126.2 dBm sensitivity at 600 bps, GFSK, 915 MHz
• -120.6 dBm sensitivity at 2.4 kbps, GFSK, 868 MHz
• -107.4 dBm sensitivity at 4.8 kbps, OOK, 433 MHz
• -112.2 dBm sensitivity at 38.4 kbps, GFSK, 169 MHz
•
Supported Modulation Formats
• 2/4 (G)FSK with fully configurable shaping
• BPSK / DBPSK TX
• OOK / ASK
• Shaped OQPSK / (G)MSK
• Configurable DSSS and FEC
•
Supported Protocols
• Proprietary Protocols
• Wireless M-Bus
• Selected IEEE 802.15.4g SUN-FSK PHYs
• Low Power Wide Area Networks
•
Suitable for Systems Targeting Compliance With:
• FCC Part 90.210 Mask D, FCC part 15.247, 15.231, 15.249
• ETSI Category I Operation, EN 300 220, EN 300 328
• ARIB T-108, T-96
• China regulatory
•
Wide selection of MCU peripherals
• 12-bit 1 Msps SAR Analog to Digital Converter (ADC)
• 2 × Analog Comparator (ACMP)
• 2 × Digital to Analog Converter (VDAC)
• 3 × Operational Amplifier (Opamp)
• Digital to Analog Current Converter (IDAC)
• Low-Energy Sensor Interface (LESENSE)
• Multi-channel Capacitive Sense Interface (CSEN)
• Up to 54 pins connected to analog channels (APORT)
shared between analog peripherals
• Up to 65 General Purpose I/O pins with output state reten-
tion and asynchronous interrupts
• 8 Channel DMA Controller
• 12 Channel Peripheral Reflex System (PRS)
• 2 × 16-bit Timer/Counter
• 3 or 4 Compare/Capture/PWM channels
• 2 × 32-bit Timer/Counter
• 3 or 4 Compare/Capture/PWM channels
• 32-bit Real Time Counter and Calendar
• 16-bit Low Energy Timer for waveform generation
• 32-bit Ultra Low Energy Timer/Counter for periodic wake-up
from any Energy Mode
• 3 × 16-bit Pulse Counter with asynchronous operation
• 2 × Watchdog Timer with dedicated RC oscillator
• 4 × Universal Synchronous/Asynchronous Receiver/Trans-
mitter (UART/SPI/SmartCard (ISO 7816)/IrDA/I
2
S)
• Low Energy UART (LEUART
™
)
• 2 × I
2
C interface with SMBus support and address recogni-
tion in EM3 Stop
Wide Operating Range
• 1.8 V to 3.8 V single power supply
• Integrated DC-DC, down to 1.8 V output with up to 200 mA
load current for system
• Standard (-40 °C to 85 °C) and Extended (-40 °C to 125 °C)
temperature grades available
Support for Internet Security
• General Purpose CRC
• True Random Number Generator
• 2 × Hardware Cryptographic Acceleration for AES 128/256,
SHA-1, SHA-2 (SHA-224 and SHA-256) and ECC
QFN48 7x7 mm Package
QFN68 8x8 mm Package
BGA125 7x7 mm Package
•
•
•
•
•
silabs.com
| Building a more connected world.
Rev. 1.4 | 2
EFR32FG12 Flex Gecko Proprietary Protocol SoC Family Data Sheet
Ordering Information
2. Ordering Information
Table 2.1. Ordering Information
Frequency Band
@ Max TX Power
2.4 GHz @ 19 dBm
Sub-GHz @ 20 dBm
EFR32FG12P433F1024GM68-C
Proprietary
2.4 GHz @ 19 dBm
Sub-GHz @ 20 dBm
EFR32FG12P433F1024GM48-C
Proprietary
2.4 GHz @ 19 dBm
Sub-GHz @ 20 dBm
EFR32FG12P432F1024GL125-C
EFR32FG12P432F1024GM48-C
EFR32FG12P431F1024GL125-C
EFR32FG12P431F1024GM68-C
EFR32FG12P431F512GM68-C
EFR32FG12P431F1024GM48-C
EFR32FG12P431F1024IM48-C
EFR32FG12P232F1024GL125-C
EFR32FG12P232F1024GM48-C
EFR32FG12P231F1024GL125-C
EFR32FG12P231F1024GM68-C
EFR32FG12P231F512GM68-C
EFR32FG12P231F1024GM48-C
Proprietary
Proprietary
Proprietary
Proprietary
Proprietary
Proprietary
Proprietary
Proprietary
Proprietary
Proprietary
Proprietary
Proprietary
Proprietary
2.4 GHz @ 19 dBm
2.4 GHz @ 19 dBm
Sub-GHz @ 20 dBm
Sub-GHz @ 20 dBm
Sub-GHz @ 20 dBm
Sub-GHz @ 20 dBm
Sub-GHz @ 20 dBm
2.4 GHz @ 19 dBm
2.4 GHz @ 19 dBm
Sub-GHz @ 20 dBm
Sub-GHz @ 20 dBm
Sub-GHz @ 20 dBm
Sub-GHz @ 20 dBm
1024
1024
1024
1024
512
1024
1024
1024
1024
1024
1024
512
1024
256
256
256
256
128
256
256
128
128
128
128
64
128
65
31
65
46
46
31
31
65
31
65
46
46
31
BGA125
QFN48
BGA125
QFN68
QFN68
QFN48
QFN48
BGA125
QFN48
BGA125
QFN68
QFN68
QFN48
-40 to +85°C
-40 to +85°C
-40 to +85°C
-40 to +85°C
-40 to +85°C
-40 to +85°C
-40 to +125°C
-40 to +85°C
-40 to +85°C
-40 to +85°C
-40 to +85°C
-40 to +85°C
-40 to +85°C
1024
256
28
QFN48
-40 to +85°C
1024
256
46
QFN68
-40 to +85°C
Ordering Code
EFR32FG12P433F1024GL125-C
Protocol
Stack
Proprietary
Flash
(kB)
1024
RAM
(kB)
256
GPIO
65
Package
BGA125
Temp Range
-40 to +85°C
silabs.com
| Building a more connected world.
Rev. 1.4 | 3
EFR32FG12 Flex Gecko Proprietary Protocol SoC Family Data Sheet
Ordering Information
EFR32 X G 1 2 P 132 F 1024 G L 125
–
A R
Tape and Reel (Optional)
Revision
Pin Count
Package – M (QFN), L (BGA)
Temperature Grade – G (-40 to +85 °C), -I (-40 to +125 °C)
Flash Memory Size in kB
Memory Type (Flash)
Feature Set Code – r2r1r0
r2: Reserved
r1: RF Type – 3 (TRX), 2 (RX), 1 (TX)
r0: Frequency Band – 1 (Sub-GHz), 2 (2.4 GHz), 3 (Dual-Band)
Performance Grade – P (Performance), B (Basic), V (Value)
Device Configuration
Series
Gecko
Family – M (Mighty), B (Blue), F (Flex)
Wireless Gecko 32-bit
Figure 2.1. Ordering Code Key
silabs.com
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Rev. 1.4 | 4
Table of Contents
1. Feature List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
2. Ordering Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
3. System Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
3.1 Introduction .
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. 8
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.10
.10
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.11
.12
.12
.12
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.13
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.14
.14
.14
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.15
.15
.15
.15
.15
.15
3.2 Radio . . . . . . . . . . . .
3.2.1 Antenna Interface . . . . . .
3.2.2 Fractional-N Frequency Synthesizer
3.2.3 Receiver Architecture . . . . .
3.2.4 Transmitter Architecture . . . .
3.2.5 Wake on Radio . . . . . . .
3.2.6 RFSENSE . . . . . . . . .
3.2.7 Flexible Frame Handling . . . .
3.2.8 Packet and State Trace . . . .
3.2.9 Data Buffering . . . . . . . .
3.2.10 Radio Controller (RAC) . . . .
3.2.11 Random Number Generator . .
3.3 Power . . . . . . . . . . .
3.3.1 Energy Management Unit (EMU)
3.3.2 DC-DC Converter . . . . .
3.3.3 Power Domains . . . . . .
3.5 Clocking . . . . . . . . . .
3.5.1 Clock Management Unit (CMU) .
3.5.2 Internal and External Oscillators.
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3.4 General Purpose Input/Output (GPIO) .
3.6 Counters/Timers and PWM . . . . . . . . .
3.6.1 Timer/Counter (TIMER) . . . . . . . .
3.6.2 Wide Timer/Counter (WTIMER) . . . . . .
3.6.3 Real Time Counter and Calendar (RTCC) . .
3.6.4 Low Energy Timer (LETIMER) . . . . . .
3.6.5 Ultra Low Power Wake-up Timer (CRYOTIMER)
3.6.6 Pulse Counter (PCNT) . . . . . . . . .
3.6.7 Watchdog Timer (WDOG) . . . . . . . .
3.7 Communications and Other Digital Peripherals . . . . . . . . . .
3.7.1 Universal Synchronous/Asynchronous Receiver/Transmitter (USART) .
3.7.2 Low Energy Universal Asynchronous Receiver/Transmitter (LEUART) .
3.7.3 Inter-Integrated Circuit Interface (I
2
C) . . . . . . . . . . . .
3.7.4 Peripheral Reflex System (PRS) . . . . . . . . . . . . .
3.7.5 Low Energy Sensor Interface (LESENSE) . . . . . . . . . .
3.8 Security Features . . . . . . . . . . . . . .
3.8.1 General Purpose Cyclic Redundancy Check (GPCRC)
3.8.2 Crypto Accelerator (CRYPTO) . . . . . . . .
3.8.3 True Random Number Generator (TRNG) . . . .
3.8.4 Security Management Unit (SMU) . . . . . . .
silabs.com
| Building a more connected world.
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Rev. 1.4 | 5
