transmitted to the second channel is detected on the second channel and promptly retransmitted to the first channel this feedback latches the device into a state portions of the transceiver have been omitted from fig8 for simplicity only the primary receiver 515 primary transmitter 520 secondary transmitter 535 secondary receiver 540 and re timer 530 are shown a latch up prevention logic 610 is placed between primary receiver 515 and primary transmitter 520 a similar latch up prevention logic 620 is placed between secondary transmitter 535 and secondary receiver 540 the latch up prevention logic 610 receives an input from the primary receiver 515 and from the secondary receiver 540 the output of the latch up prevention logic 610 is coupled to a disable logic dl 630 in the primary transmitter 520 similarly the latch up prevention logic 620 receives an input from the secondary receiver 540 and the primary receiver 515 the output of the latch up prevention logic 620 is coupled to a disable logic dl 640 in the secondary transmitter 535 pin 680 is coupled to the host channel 570 not shown while pin 690 is coupled to stick channel 575 not shown when the primary receiver 515 receives data from.