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M32000D4BFP-80 Datasheet(Fiches technique) 1 Page - Mitsubishi Electric Semiconductor

Numéro de pièce M32000D4BFP-80
Description  SINGLE-CHIP 32-BIT CMOS MICROCOMPUTER   
Télécharger  44 Pages
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Fabricant  MITSUBISHI [Mitsubishi Electric Semiconductor]
Site Internet  http://www.mitsubishichips.com
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SINGLE-CHIP 32-BIT CMOS MICROCOMPUTER
FEATURES
CPU ..........................................................M32R family CPU core
Pipeline ..............................................................................5 steps
Basic bus cycle ................................. 12.5 ns (at internal 80 MHz)
Logical address space ............................................4G-byte linear
External bus ........................................................ data bus: 16 bits
address bus: 24 bits
Internal DRAM................................................16M bits (2M bytes)
Cache .......................................................... 4K bytes (direct map)
Register configuration ...... general-purpose registers: 32 bits x 16
control registers: 32 bits x 5
Instruction set ........................83 instructions/6 addressing modes
Instruction format .................................................... 16 bits/32 bits
Multiply-accumulate operation unit (DSP function instruction)
Internal memory controller
Programmable I/O ports
Power management function ..................................standby mode
/CPU sleep mode
PLL clock generating circuit ................. four-time clock PLL circuit
Operation mode .............................................. master/slave mode
Interrupt input ............................................................
___
___
INT and SBI
Power source .......................................................... 3.3 V (±10 %)
APPLICATIONS
Portable equipment, Still camera, Navigation system,
Digital instrument, Printer, Scanner, FA equipment
DESCRIPTION
The M32000D4BFP-80 is a new generation microcomputer with a
32-bit CPU and built-in high capacity DRAM. Using this device it is
possible to implement the complex applications of the multimedia
age with high performance and low power consumption.
The M32000D4BFP-80 contains 2M bytes of DRAM and 4K bytes of
cache memory. The CPU is implemented with a RISC architecture
and has a high performance figure of 62.9 MIPS (at an internal clock
rate of 80 MHz). Memory for main storage is provided internally to
the device eliminating external memory and associated control cir-
cuits thus reducing overall system noise and power consumption.
The CPU, internal DRAM and cache memory are connected by a
128-bit, 12.5 ns/cycle (at internal 80MHz) internal bus which virtually
eliminates transfer bottlenecks in between the CPU and the memory.
The M32000D4BFP-80 internally multiplies the frequency of the in-
put clock signals by four. For an internal operating frequency of 80
MHz the input clock frequency is 20 MHz.
A 16-bit data and 24-bit address bus are the M32000D4BFP-80's
external bus and the interface to external peripheral controllers. When
the hold state is set, the internal DRAM can be accessed from an
external device.
A 3-chip basic system configuration using the M32000D4BFP-80 is
the device itself plus an ASIC as a peripheral controller and a pro-
gram ROM. Execution starts from the reset vector entry on the exter-
nal ROM after power on, a program requiring high speed execution
is then transferred to internal DRAM and this is then executed. The
M32000D4BFP-80 also has a slave mode additional to its master
mode. When set to slave mode the M32000D4BFP-80 can be used
as a coprocessor. In this mode it does not access its external bus
immediatly after reset, but waits for the master to start its operation.
MITSUBISHI MICROCOMPUTERS
M32000D4BFP-80




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