Thursday, December 6, 2012

spns174.pdf download Texas Instruments TI pdf datasheet

1 RM48Lx50 16/32-Bit RISC Flash Microcontroller   
1.1 Features   
?High-Performance Microcontroller for Safety Critical Applications ?Dual CPU抯 running in lockstep ?ECC on flash and RAM interfaces ?Built-In Self Test for CPU and on-chip RAMs  ?Multiple Communication Interfaces ?10/100 Mbps Ethernet MAC (EMAC) ?IEEE 802.3 compliant (3.3V-I/O only) ?Supports MII and MDIO ?USB 
?Error Signaling Module with Error Pin ?Voltage and Clock Monitoring ?ARM?Cortex??R4F 32-bit RISC CPU ?Efficient 1.6DMIPS/MHz with 8-stage pipeline ?Floating-Point Unit with Single/Double Precision ?12-Region Memory Protection Unit ?Open Architecture with 3rd Party Support ?Operating Conditions ?Up to 200MHz System Clock ?Core Supply Voltage (VCC): 1.2V nominal ?I/O Supply Voltage (VCCIO): 3.3V nominal ?Integrated Memory ?Up to 3MB Program Flash with ECC ?Up to 256KB RAM with ECC ?64KB Flash for emulated EEPROM ?16-bit External Memory Interface  ?2-port USB Specification, revision 2.0-compatible host controller, based on the OHCI Specification for USB, release 1.0 ?One full-speed USB device compatible with the USB Specification, revision 2.0 and USB Specification, revision 1.1 ?Three CAN Controllers (DCAN) ?64 mailboxes with parity protection each ?Compliant to CAN protocol version 2.0B ?Inter-Integrated Circuit (I2C) ?Three Multi-buffered Serial Peripheral Interfaces (MibSPI) ?128 Words with Parity Protection each ?Two Standard Serial Peripheral Interfaces (SPI) ?Local Interconnect Network Interface (LIN) Controller 
?Common Platform Architecture ?Consistent memory map across family  ?Compliant to LIN protocol version 2.1 ?Standard Serial Communication Interface 
?Real-Time Interrupt Timer (RTI) OS Timer  (SCI) 
?96-channel Vectored Interrupt Module (VIM)  ?Two High-End Timer Modules (N2HET) 
?2-channel Cyclic Redundancy Checker (CRC)  ?N2HET1: 32 programmable channels 
?Direct Memory Access (DMA) Controller  ?N2HET2: 20 programmable channels 
?16 Channels and 32 Control Packets ?Parity protection for control packet RAM ?DMA Accesses Protected by Dedicated MPU ?Frequency-Modulated Phase-Locked-Loop (FMPLL) with Built-In Slip Detector ?Separate Non-Modulating PLL ?IEEE 1149.1 JTAG, Boundary Scan and ARM CoreSight Components  ?160 Word Instruction RAM with parity protection each ?Each includes Hardware Angle Generator ?Dedicated Transfer Unit for each N2HET (HTU) ?Two 10/12-bit Multi-Buffered ADC Modules ?ADC1: 24 channels ?ADC2: 16 channels 
?JTAG Security Module  ?16 shared channels 
?Trace and Calibration Capabilities  ?64 result buffers with parity protection each 
?Embedded Trace Macrocell (ETM-R4)  ?Packages 
?Data Modification Module (DMM)  ?144-pin Quad Flatpack (PGE) [Green] 
?RAM Trace Port (RTP)  ?337-Ball Grid Array (ZWT) [Green] 
1.2 Applications
• Industrial Safety Applications
– Industrial Automation
– Safe PLC's (Programmable Logic Controllers)
– Power Generation and Distribution
– Turbines and Windmills
– Elevators and Escalators
• Medical Applications
– Ventilators
– Defibrillators
– Infusion and Insulin pumps
– Radiation therapy
– Robotic surgery
1.3 Description
The RM48Lx50 is a high performance microcontroller family for safety systems. The safety architecture
includes Dual CPUs in lockstep, CPU and Memory Built-In Self Test (BIST) logic, ECC on both the Flash
and the data SRAM, parity on peripheral memories, and loop back capability on peripheral IOs.
The RM48Lx50 integrates the ARM® Cortex™-R4F Floating Point CPU which offers an efficient 1.6
DMIPS/MHz, and has configurations which can run up to 200MHz providing up to 320 DMIPS. The device
supports the little-endian [LE32] format.
The RM48Lx50 has up to 3MB integrated Flash and up to 256KB data RAM configurations with single bit
error correction and double bit error detection. The flash memory on this device is a nonvolatile,
electrically erasable and programmable memory implemented with a 64-bit-wide data bus interface. The
flash operates on a 3.3V supply input (same level as I/O supply) for all read, program and erase
operations. When in pipeline mode, the flash operates with a system clock frequency of up to 200MHz.
The SRAM supports single-cycle read/write accesses in byte, halfword, and word modes.
The RM48Lx50 device features peripherals for real-time control-based applications, including two Next
Generation High End Timer (N2HET) timing coprocessors with up to 44 total IO terminals and a 12-bit
Analog-to-Digital converter supporting up to 24 inputs.

DatasheetDoc-Texas Instruments TI pdf datasheet download


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