Zilog Z80180 Manuel d'utilisateur Page 100

  • Télécharger
  • Ajouter à mon manuel
  • Imprimer
  • Page
    / 326
  • Table des matières
  • MARQUE LIVRES
  • Noté. / 5. Basé sur avis des utilisateurs
Vue de la page 99
Z8018x
Family MPU User Manual
UM005003-0703
85
Z8X180. Figure 43 illustrates the INT1, INT2 and internal interrupts
timing.
Table 10. RETI Control Signal States
Machine
Cycle States Address Data
MI
RD WR MREQ IORQ M1E=1 M1E=0 HALT ST
1 T1-T3 1st
Op Code
EDH 0 1 0 1 0 1 1 0
2TI-T32nd
Op Code
4DH 0 1 0 1 0 1 1 1
3T1Don't
Care
3-state 1 1 1 1 1 1 1 1
4T1Don't
Care
3-state 1 1 1 1 1 1 1 1
5T1Don't
Care
3-state 1 1 1 1 1 1 1 1
6 T1-T3 1st
Op Code
EDH 0 1 0 1 0 0 1 1
7T1Don't
Care
3-state 1 1 1 1 1 1 1 1
8 T1-T3 2nd
Op Code
4DH 0 1 0 1 0 1 1 1
9T1-T3SPdata01011111
10 T1-T3 SP+1 data 0 1 0 1 1 1 1 1
IOC affects the IORQ/RD signals. M1E affects the assertion of M1. One state also reflects a 1 while
the other reflects a 0
Vue de la page 99
1 2 ... 95 96 97 98 99 100 101 102 103 104 105 ... 325 326

Commentaires sur ces manuels

Pas de commentaire