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56855 Datasheet 16-bit Digital Signal Controllers

Manufacturer: Freescale Semiconductor (now NXP Semiconductors)

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General Description

• 120 MIPS at 120MHz • 24K x 16-bit Program SRAM • 24K x 16-bit Data SRAM • 1K x 16-bit Boot ROM • Access up to 2M words of program memory or 8M words of data memory • Chip Select Logic for glueless interface to ROM and SRAM • Six (6) independent channels of DMA • Enhanced Synchronous Serial Interface (ESSI) • Two (2) Serial Communication Interfaces (SCI) • General Purpose 16-bit Quad Timer with 1 external pin • JTAG/Enhanced On-Chip Emulation (OnCE™) for unobtrusive, real-time debugging • Computer Operating Properly (COP)/Watchdog Timer • Time-of-Day (TOD) • 100 LQFP package • Up to 18 GPIO 6 VDDIO 10 VDD 4 VSSIO 10 VSS VDDA 4 VSSA JTAG/ Enhanced OnCE Program Controller and Hardware Looping Unit Address Generation Unit 16-Bit DSP56800E Core Data ALU 16 x 16 + 36 → 36-Bit MAC Three 16-bit Input Registers Four 36-bit Accumulators Bit Manipulation Unit PAB PDB CDBR CDBW Memory Program Memory 24,576 x 16 SRAM Boot ROM 1024 x 16 ROM Data Memory 24,576 x 16 SRAM XDB2 XAB1 XAB2 PAB PDB CDBR CDBW System Bus Control DMA 6 channel Core CLK IPBus Bridge (IPBB) IPWDB Decoding Peripherals A0-20 [20:0] D0-D15 [15:0] RD Enable WR Enable CS0-CS3[3:0] or GPIOA0-GPIOA3[3:0] Bus Control External Address Bus Switch External Data Bus Switch External Bus Interface Unit 2 SCI ESSI0 or or GPIOE GPIOC IPRDB IPAB DMA Requests IPBus CLK POR 3 CLKO MODEA-C or (GPIOH0-H2) RSTO RESET System COP/TOD CLK Integration Module Quad Timer or GPIOG Interrupt Controller COP/ Watchdog Time of Day Clock Generator OSC PLL EXTAL XTAL 4 6 IRQA IRQB 56855 Block Diagram 56855 Technical Data, Rev.

6 Freescale Semiconductor 3 Part 1 Overview 1.1 56855

Overview

56855 Data Sheet Technical Data www.DataSheet4U.com 56800E 16-bit Digital Signal Controllers DSP56855 Rev.

6 01/2007 freescale.

Key Features

  • 1.1.1.
  • Core Efficient 16-bit engine with dual Harvard architecture 120 Million Instructions Per Second (MIPS) at 120MHz core frequency Single-cycle 16 × 16-bit parallel Multiplier-Accumulator (MAC) Four (4) 36-bit accumulators including extension bits 16-bit bidirectional shifter Parallel instruction set with unique DSP addressing modes H.

More Datasheets from Freescale Semiconductor (now NXP Semiconductors)

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56852 16-bit Digital Signal Controllers
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