3875 - Programmer: What is the maximum programming frequency achieved with HW-USBN-2A cable, while programming MachXO2 device using Slave Serial Programming Interface (SSPI)?

3875 - Programmer: What is the maximum programming frequency achieved with HW-USBN-2A cable, while programming MachXO2 device using Slave Serial Programming Interface (SSPI)?

The maximum achievable Slave Serial Programming Interface (SSPI) programming frequency with HW-USBN-2A cable is 1.5 MHz, when the TCK value is either set to 0 or 1.
For other values of TCK (2 to 10), the SSPI programming frequencies are listed below:
 
TCK | Frequency
  0      1.5 MHz
  1      1.5 MHz
  2      125 kHz
  3      93.75 kHz
  4      75 kHz
  5      62.5 kHz
  6      53.58 kHz
  7      46.88 kHz
  8      41.67 kHz
  9      37.5 kHz
10      34 kHz