4
4.1. .
4.2.
4.3.
.
, .
. 1.10.
. 1.11.
(. 1.10) , READY, ( HOLD INT ).
1 . . SYNC , , , (SL), -, . , DBIN (. 1.11).
2 , Ready. Wait (Tw). Tw , Ready , , . , , Tw, . . T2 Tw 3, . 4 5 , . 1 5 (. . 1.10). : 1, 2, 3. 1 . , / . , 1 2, . . 4 1. 2 DBIN. , . 2 . 1 3 , - . DBIN , . PSW.