5.3 Two-Wire ICSP Details

In ICSP mode, the Two-Wire ICSP™ signals are time multiplexed into the Two-Wire to Four-Wire block. The Two-Wire to Four-Wire block then converts the signals to look like a Four-Wire JTAG port to the TAP controller. The following are two possible modes of operation:

• 4-phase ICSP
• 2-phase ICSP