Sample &
Buy
Support &
Community
Product
Folder
Tools &
Software
Technical
Documents
RM44L920, RM44L520
SPNS229C –OCTOBER 2014–REVISED NOVEMBER 2016
RM44Lx20 16- and 32-Bit RISC Flash Microcontroller
1 Device Overview
1.1 Features
1
• High-Performance Microcontroller (MCU) for
Safety-Critical Applications
• Enhanced Timing Peripherals
– 7 Enhanced Pulse Width Modulator (ePWM)
Modules
– 6 Enhanced Capture (eCAP) Modules
– Dual CPUs Running in Lockstep
– ECC on Flash and RAM Interfaces
– Built-In Self-Test (BIST) for CPU and On-chip
RAMs
– 2 Enhanced Quadrature Encoder Pulse (eQEP)
Modules
– Error Signaling Module With Error Pin
– Voltage and Clock Monitoring
• Two Next Generation High-End Timer (N2HET)
Modules
• ARM® Cortex®-R4F 32-Bit RISC CPU
– 1.66 DMIPS/MHz With 8-Stage Pipeline
– FPU With Single and Double Precision
– 12-Region Memory Protection Unit (MPU)
– Open Architecture With Third-Party Support
• Operating Conditions
– N2HET1: 32 Programmable Channels
– N2HET2: 18 Programmable Channels
– 160-Word Instruction RAM With Parity
Protection Each
– Each N2HET Includes Hardware Angle
Generator
– Dedicated High-End Timer Transfer Unit (HTU)
for Each N2HET
– Up to 180-MHz System Clock
– Core Supply Voltage (VCC): 1.14 to 1.32 V
– I/O Supply Voltage (VCCIO): 3.0 to 3.6 V
• Integrated Memory
• Two 12-Bit Multibuffered ADC Modules
– ADC1: 24 Channels
– ADC2: 16 Channels
– 16 Shared Channels
– 64 Result Buffers With Parity Protection Each
• Multiple Communication Interfaces
– Up to Three CAN Controllers (DCANs)
– 64 Mailboxes With Parity Protection Each
– Up to 1MB of Flash With ECC
– 128KB of RAM With ECC
– 64KB of Flash for Emulated EEPROM With
ECC
• Common Platform Architecture
– Consistent Memory Map Across Family
– Real-Time Interrupt Timer (RTI) OS Timer
– 128-Channel Vectored Interrupt Module (VIM)
– 2-Channel Cyclic Redundancy Checker (CRC)
• Direct Memory Access (DMA) Controller
– 16 Channels and 32 Peripheral Requests
– Parity for Control Packet RAM
– DMA Accesses Protected by Dedicated MPU
• Frequency-Modulated Phase-Locked Loop
(FMPLL) With Built-In Slip Detector
• IEEE 1149.1 JTAG, Boundary Scan and ARM
CoreSight™ Components
– Compliant to CAN Protocol Version 2.0A and
2.0B
– Inter-Integrated Circuit (I2C)
– 3 Multibuffered Serial Peripheral Interfaces
(MibSPIs)
– 128 Words With Parity Protection Each
– 8 Transfer Groups
– One Standard Serial Peripheral Interface (SPI)
Module
– Two UART (SCI) Interfaces, One With Local
Interconnect Network (LIN 2.1) Interface
Support
• Advanced JTAG Security Module (AJSM)
• Up to 64 General-Purpose I/O (GIO) Pins
• Packages
– 144-Pin Quad Flatpack (PGE) [Green]
– 100-Pin Quad Flatpack (PZ) [Green]
– Up to 16 GIO Pins With Interrupt Generation
Capability
1
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. PRODUCTION DATA.