Paralel
Well-known member
Does anyone know the speed, either 255 ns or 100ns for the PCMCIA standard implemented on Macs, and also whether they operate in byte mode or word mode with compactflash cards?
I have been trying to figure out the theoretical maximum transfer rate for the Rev C PCMCIA module on the 540c, but I can't really determine it without this information.
My best guess is that since the PDS it plugs into is 16-bit, and runs at 15.7 MHz, the peak data rate should be 31.4 Mbits/sec, which is approximately the maximum speed of PCMCIA 16-bit @ 255 ns in byte mode.
If it actually runs at that speed I'm going to want to get a CF card that is capable of at least 30 Mbits/second to max out the speed of the main storage media I'll be using in the machine.
I have been trying to figure out the theoretical maximum transfer rate for the Rev C PCMCIA module on the 540c, but I can't really determine it without this information.
My best guess is that since the PDS it plugs into is 16-bit, and runs at 15.7 MHz, the peak data rate should be 31.4 Mbits/sec, which is approximately the maximum speed of PCMCIA 16-bit @ 255 ns in byte mode.
If it actually runs at that speed I'm going to want to get a CF card that is capable of at least 30 Mbits/second to max out the speed of the main storage media I'll be using in the machine.