A3000 rev6.1 030@25MHz
2MB chip
1MB fastmem (standard memory, 8 x DIP GM71C4256A-80)
ROM timing at fastest 160ns setting (70ns MX27C2048 OTP EPROMs in U182 and U183):
 - Gives as high read bandwidth as the DIP fastmem when measuring with
   bustest so should be equivalent in performance to "Cpu FASTROM".
Ramsey 390541-04
Super DMAC 390537-02
Super Buster 390539-07
Kickstart 3.1
Workbench 3.1

2.System3.1:> bustest fast rom chip
BusSpeedTest 0.19 (mlelstv)   Buffer:     262144 Bytes, Alignment: 32768
========================================================================
memtype   addr       op         cycle     calib         bandwidth
fast      $07F48000  readw     249.3 ns   normal       8.0 * 10^6 byte/s
fast      $07F48000  readl     330.2 ns   normal      12.1 * 10^6 byte/s
fast      $07F48000  readm     302.2 ns   normal      13.2 * 10^6 byte/s
fast      $07F48000  writew    248.2 ns   normal       8.1 * 10^6 byte/s
fast      $07F48000  writel    248.3 ns   normal      16.1 * 10^6 byte/s
fast      $07F48000  writem    219.4 ns   normal      18.2 * 10^6 byte/s
chip      $00028000  readw     773.5 ns   normal       2.6 * 10^6 byte/s
chip      $00028000  readl     773.9 ns   normal       5.2 * 10^6 byte/s
chip      $00028000  readm     643.0 ns   normal       6.2 * 10^6 byte/s
chip      $00028000  writew    572.9 ns   normal       3.5 * 10^6 byte/s
chip      $00028000  writel    572.3 ns   normal       7.0 * 10^6 byte/s
chip      $00028000  writem    573.5 ns   normal       7.0 * 10^6 byte/s
rom       $00F80000  readw     242.3 ns   normal       8.3 * 10^6 byte/s
rom       $00F80000  readl     323.4 ns   normal      12.4 * 10^6 byte/s
rom       $00F80000  readm     298.1 ns   normal      13.4 * 10^6 byte/s