BT_H2B_ATN
if (status & BT_H2B_ATN)
if (status & (BT_B_BUSY | BT_H2B_ATN))
BT_CONTROL(BT_H2B_ATN); /* can clear too fast to catch */
if (status & (BT_B_BUSY | BT_H2B_ATN))
BT_CONTROL(BT_H2B_ATN);