Sunday, December 9, 2012

spns177a.pdf download Texas Instruments TI pdf datasheet

1 RM48L952 16/32-Bit RISC Flash Microcontroller   
1.1 Features   
 High-Performance Microcontroller for Safety "  Multiple Communication Interfaces "
Critical Applications  ?10/100 Mbps Ethernet MAC (EMAC) 
?Dual CPU抯 running in lockstep   IEEE 802.3 compliant (3.3V-I/O only) "
?ECC on flash and RAM interfaces   Supports MII and MDIO "
?Built-In Self Test for CPU and on-chip RAMs  ?USB 
?Error Signaling Module with Error Pin   2-port USB Specification
?Voltage and Clock Monitoring  compatible host controller, based on the 
 ARM?Cortex" ?R4F 32-bit RISC CPU " OHCI Specification for USB, release 1.0 
?Efficient 1.66DMIPS/MHz with 8-stage pipeline ?FPU with Single/Double Precision ?12-Region Memory Protection Unit ?Open Architecture with 3rd Party Support  Operating Conditions ?Up to 220MHz System Clock ?Core Supply Voltage (VCC): 1.2V nominal ?I/O Supply Voltage (VCCIO): 3.3V nominal " Integrated Memory ?3MB Program Flash with ECC ?256KB RAM with ECC ?64KB Flash for emulated EEPROM "  One full-speed USB device compatible with the USB Specification
 16-bit External Memory Interface " Common Platform Architecture "  Compliant to LIN protocol version 2.1 ?Standard Serial Communication Interface "
?Consistent memory map across family  (SCI) 
?Real-Time Interrupt Timer (RTI) OS Timer   Two High-End Timer Modules (N2HET) "
?96-channel Vectored Interrupt Module (VIM)  ?N2HET1: 32 programmable channels 
?2-channel Cyclic Redundancy Checker (CRC)  ?N2HET2: 20 programmable channels 
 Direct Memory Access (DMA) Controller " ?160 Word Instruction RAM with parity 
?16 Channels and 32 Control Packets  protection each 
?Parity protection for control packet RAM  ?Each includes Hardware Angle Generator 
?DMA Accesses Protected by Dedicated MPU  ?Dedicated Transfer Unit for each N2HET 
 Frequency-Modulated Phase-Locked-Loop " (HTU) 
(FMPLL) with Built-In Slip Detector   Two 10/12-bit Multi-Buffered ADC Modules "
 Separate Non-Modulating PLL " ?ADC1: 24 channels 
 IEEE 1149.1 JTAG  Boundary Scan and ARM "
CoreSight Components  ?16 shared channels 
 JTAG Security Module " ?64 result buffers with parity protection each 
 Trace and Calibration Capabilities "  Packages "
?Embedded Trace Macrocell (ETM-R4)  ?144-pin Quad Flatpack (PGE) [Green] 
?Data Modification Module (DMM)  ?337-Ball Grid Array (ZWT) [Green] 
?RAM Trace Port (RTP) 
?Parameter Overlay Module (POM) 
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 RM48L952 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 RM48L952 integrates the ARM® Cortex™-R4F Floating Point CPU which offers an efficient
1.66DMIPS/MHz, and has configurations which can run up to 220 MHz, providing up to 365 DMIPS. The
device supports the little-endian [LE32] format.
The RM48L952 has 3MB integrated Flash and 256KB data RAM 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 220MHz. The SRAM supports singlecycle
read/write accesses in byte, halfword, and word modes.
The RM48L952 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


Post a Comment