The PowerPC 602 a Microprocessor founded on architecture RISC PowerPC, developed jointly by Apple, IBM and Motorola. Intended for the embarked systems, it belongs to the second generation of PowerPC (or G2) with the PowerPC 603, PowerPC 604 and PowerPC 620.

History

PowerPC 602, derived from the PowerPC 603, was announced in February 1995. It aimed at the market of the Processeur S portables embarked like the game consoles or PDA. It was modified compared to the PowerPC 603 in order to reduce the production costs and to reduce its electricity consumption: in particular, the capacity of the Mémoire hiding place was reduced and the simplified Unité of floating-point calculation (it does not manage any more calculations in double precision double precision). Its marketing started with the end of the year 1995.

Structure

Deriving from the PowerPC 603, PowerPC 602 takes again most of architecture of it. It has four independent treatment units:

• the treatment unit of entireties (FXU);
• the treatment unit of floating (FPU);
• the treatment unit of connections (BPU);
• the unit of recording/loading.

The treatment unit of the entireties was improved in order to accelerate the applications multi-media where many multiplications are carried out. The hierarchy memory was simplified, with the removal of the masks of read/write and the reduction in the mask (of 8 Kio to 4 Kio). Like the PowerPC 603, it can simultaneously manage two instructions per cycle of clock and has three modes of energy saving ( doze , nap , and sleep ).

Characteristics

• date of introduction: end 1995
• intricacy of engraving: 0,50 micrometers
• number of Transistor S: 1 million
• size: 50 mm²
• Frequency: 66 or 80 drunk MHz
• addressing 32 bit, data bus 64 bit
• frequency of the drunk: 33 or 40 MHz
• size of the Mémoire hiding place: 4 Kio of level 1
• voltage: 3,3 V
• consumption: 1,2 W with 66 MHz
• SPECint92 performances: 40 (model 66 MHz)/48 (model 80 MHz)

External bonds

• Manual of PowerPC 602 (in English)

Random links:

Henri Ier de Limbourg | Roger Bushell | Heniochus varius | Forty and unième | Gerard Jourd' today