SCR_ATN
SCR_SET (SCR_ATN),
SCR_CLR (SCR_ACK|SCR_ATN),
SCR_CLR (SCR_ACK|SCR_ATN),
SCR_SET (SCR_ATN),
SCR_SET (SCR_ATN),
SCR_CLR (SCR_ACK|SCR_ATN),
SCR_SET (SCR_ATN),
SCR_CLR (SCR_ACK|SCR_ATN),
SCR_SET (SCR_ATN), /* Shall be asserted 2 deskew delays before the */
SCR_CLR (SCR_ATN),
SCR_CLR (SCR_ACK|SCR_ATN),
SCR_SET (SCR_ATN),
SCR_SET (SCR_ATN),
SCR_SET (SCR_ATN),
SCR_SET (SCR_ATN),
SCR_SET (SCR_ATN),
SCR_SET (SCR_ATN),
SCR_CLR (SCR_ACK|SCR_ATN),
SCR_SET (SCR_ATN), /* Shall be asserted 2 deskew delays before the */
SCR_CLR (SCR_ATN),
SCR_SET (SCR_ATN),
SCR_CLR (SCR_ACK|SCR_ATN),
SCR_CLR (SCR_ACK|SCR_ATN),
SCR_CLR (SCR_ACK|SCR_ATN),
SCR_SET (SCR_ATN),
SCR_SET (SCR_ATN),
SCR_SET (SCR_ATN),
SCR_SET (SCR_ATN),
SCR_SET (SCR_ATN),
SCR_SET (SCR_ATN),
SCR_CLR (SCR_ACK|SCR_ATN),
SCR_SET (SCR_ATN), /* Shall be asserted 2 deskew delays before the */
SCR_CLR (SCR_ATN),
SCR_SET (SCR_ATN),
SCR_CLR (SCR_ACK|SCR_ATN),
SCR_CLR (SCR_ACK|SCR_ATN),