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PC7447

ATMEL Corporation
Part Number PC7447
Manufacturer ATMEL Corporation
Description (PC7447 / PC7457) PowerPC 7457 RISC Microprocessor
Published Jan 4, 2006
Detailed Description Features • • • • • • • • • • • • • • • • • 3000 Dhrystone 2.1 MIPS at 1.3 GHz Selectable Bus Clock (30 CPU Bus Dividers ...
Datasheet PDF File PC7447 PDF File

PC7447
PC7447

Overview
Features • • • • • • • • • • • • • • • • • 3000 Dhrystone 2.
1 MIPS at 1.
3 GHz Selectable Bus Clock (30 CPU Bus Dividers up to 28x) 13 Selectable Core-to-L3 Frequency Divisors Selectable MPx/60x Interface Voltage (1.
8V, 2.
5V) Selectable L3 Interface of 1.
8V or 2.
5V PD Typical 12.
6W at 1 GHz at VDD = 1.
3V; 8.
3W at 1 GHz at VDD = 1.
1V, Full Operating Conditions Nap, Doze and Sleep Modes for Power Saving Superscalar (Four Instructions Fetched Per Clock Cycle) 4 GB Direct Addressing Range Virtual Memory: 4 Hexabytes (252) 64-bit Data and 32-bit Address Bus Interface Integrated L1: 32 KB Instruction and 32 KB Data Cache Integrated L2: 512 KB 11 Independent Execution Units and Three Register Files Write-back and Write-through Operations fINT Max = 1 GHz (1.
2 GHz to be Confirmed) fBUS Max = 133 MHz/166 MHz PowerPC 7457 RISC Microprocessor PC7457/47 Preliminary Specification α-site Description This document is primarily concerned with the PowerPC™ PC7457; however, unless otherwise noted, all information here also applies to the PC7447.
The PC7457 and PC7447 are implementations of the PowerPC microprocessor family of reduced instruction set computer (RISC) microprocessors.
This document describes pertinent electrical and physical characteristics of the PC7457.
The PC7457 is the fourth implementation of the fourth generation (G4) microprocessors from Motorola.
The PC7457 implements the full PowerPC 32-bit architecture and is targeted at networking and computing systems applications.
The PC7457 consists of a processor core, a 512 Kbyte L2, and an internal L3 tag and controller which support a glueless backside L3 cache through a dedicated high-bandwidth interface.
The PC7447 is identical to the PC7457 except it does not support the L3 cache interface.
The core is a high-performance superscalar design supporting a double-precision floating-point unit and a SIMD multimedia unit.
The memory storage subsystem supports the MPX bus interface to main memory and other system resource...


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