View Single Post
Old 17 August 2012, 17:39   #147
Join Date: Jun 2010
Location: out in the wild
Posts: 1,245
Originally Posted by SpeedGeek View Post
The 68030 can run a 2 clock synchronous (external) cycle.
Really? The way I'm reading the datasheet is that STERM is sampled on the next half-clock after AS, and the cycle can be completed on the half-cycle after that, so the total time after AS would be a single cycle.

If you count from ECS, this would be 1.5 cycles. Either way, it's a full cycle less than the fastest access that I have done before. ACA1231 beats the crap out of the B1230-IV, despite almost 20% lower clock rate. So much for "on-chip cache hit rate of the 68030".

Schoenfeld is offline  
Page generated in 0.03916 seconds with 10 queries