Captain ZILOG!!!

Par MicroTech

Champion (388)

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24-09-2008, 10:06

Par FiXato

Scribe (1741)

Portrait de FiXato

24-09-2008, 11:10

LOL Smile

Par Metalion

Paragon (1622)

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24-09-2008, 15:33

I do remember reading in the early '80s the description of the Z8 family.
It was simple yet effective : Z80, Z800, Z8000, Z80000.

While searching for some info on the Z80000, I came across those interesting informations about the eZ80 :

The ZiLOG eZ80 is an 8-bit microprocessor which is essentially an updated version of the company's earlier Z80 8-bit microprocessor.

The eZ80 (like the Z380) is binary compatible with Z80 and Z180, but almost four times as fast as the old Z80 chip at the same core frequency. Available at up to 50MHz (2005), the CPU's speed is comparable to a Z80 clocked at 150 MHz if fast memory is used (i.e. no wait states and fetching an opcode, and at the equivalent of 200 MHz for data). The eZ80 also supports direct addressing of 16 MB of memory without a memory management unit, by extending most registers (HL, BC, DE, IX, IY, PC, and SP) from 16 to 24 bits.

The chip has a similar memory interface to the Z80 family, including the bus request/acknowledge pins, and adds 4 integrated chip selects. Versions are available with on-chip flash memory and on-chip zero wait-state SRAM (up to 256KB Flash and 16KB SRAM). The eZ80 supports a free TCP/IP stack and operating system based on Xinu operating system, as well as a real-time kernel.

Par MicroTech

Champion (388)

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25-09-2008, 11:52

Although incompatible with Z80, I can't stop wondering how could have evolved MSX with thisB-)