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TMS470R1VF48C Datasheet(PDF) 3 Page - Texas Instruments |
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TMS470R1VF48C Datasheet(HTML) 3 Page - Texas Instruments |
3 / 67 page TMS470R1VF48C/VF48B 16/32-BIT RISC FLASH MICROCONTROLLERS SPNS093D – MAY 2004 – REVISED FEBRUARY 2006 3 POST OFFICE BOX 1443 • HOUSTON, TEXAS 77251-1443 description The VF48x(2) devices are members of the Texas Instruments TMS470R1x family of general-purpose 16/32-bit reduced instruction set computer (RISCllers. The VF48x microcontroller offers high performance utilizing the high-speed ARM7TDMI 16/32-bit RISC central processing unit (CPU), resulting in a high instruction throughput while maintaining greater code efficiency. The ARM7TDMI 16/32-bit RISC CPU views memory as a linear collection of bytes numbered upwards from zero. The VF48x uses the big-endian format where the most significant byte of a word is stored at the lowest numbered byte and the least significant byte at the highest numbered byte. High-end embedded control applications demand more performance from their controllers while maintaining low costs. The VF48x RISC core architecture offers solutions to these performance and cost demands while maintaining low power consumption. The VF48x devices contain the following: ARM7TDMI 16/32-Bit RISC CPU TMS470R1x system module (SYS) with 470+ enhancements 1M-byte flash (VF48C only) 768K-byte flash (VF48B only) 64K-byte SRAM (VF48C only) 48K-byte SRAM (VF48B only) Frequency-modulated zero-pin phase-locked loop (FMZPLL) clock module Digital watchdog (DWD) timer Analog watchdog (AWD) timer Enhanced real-time interrupt (RTI) module Interrupt expansion module (IEM) Memory security module (MSM) JTAG security module Two serial peripheral interface (SPI) modules Three serial communications interface (SCI) modules Two high-end CAN controllers (HECC) Five inter-integrated circuit (I2C) modules 10-bit multi-buffered analog-to-digital converter (MibADC), with 12 input channels High-end timer lite (HET) controlling 12 I/Os External Clock Prescale (ECP) Expansion Bus Module (EBM) Up to 93 I/O pins The functions performed by the 470+ system module (SYS) include: Address decoding Memory protection Memory and peripherals bus supervision Reset and abort exception management Prioritization for all internal interrupt sources Device clock control Parallel signature analysis (PSA) The enhanced real-time interrupt (RTI) module on the VF48x has the option to be driven by the oscillator clock. The digital watchdog (DWD) is a 25-bit resettable decrementing counter that provides a system reset when the watchdog counter expires. This data sheet includes device-specific information such as memory and peripheral select assignment, interrupt priority, and a device memory map. For a more detailed functional description of the SYS module, see the TMS470R1x System Module Reference Guide (literature number SPNU189). 2 Throughout the remainder of this document, the TMS470R1VF48C and TMS740R1VF48B device names, where generic, will be referred to as either VF48C/VF48B or VF48x; and where unique, by either the full device name or VF48C or VF48B. |
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