Cirrus-logic EP93xx Manuel d'utilisateur Page 781

  • Télécharger
  • Ajouter à mon manuel
  • Imprimer
  • Page
    / 824
  • Table des matières
  • MARQUE LIVRES
  • Noté. / 5. Basé sur avis des utilisateurs
Vue de la page 780
DS785UM1 27-11
Copyright 2007 Cirrus Logic
IDE Interface
EP93xx User’s Guide
2
7
2
7
Bit Descriptions:
RSVD: Reserved. Unknown during read, ignored during write.
CS0n: Chip Select 0 pin output control.
CS1n: Chip Select 1 pin output control.
DA: Device address output control.
DIORn: DIORn pin output control.
DIOWn: DIOWn pin output control.
DASPn: DASPn pin input state. This signal comes in on the
EGPIO[15] pin. Read only.
DMARQ: DMARQ pin input state. This signal comes in on the
EGPIO[2] pin. Read only.
INTRQ: INTRQ pin input state. This input comes from the INT[3]
input pin and is routed to the Interrupt Controller. Read
only.
IORDY: IORDY pin input state. Read only.
IDECfg
Address:
0x800A_0004 - Read/Write
Default:
0x0000_0000
Definition:
IDE Configuration Register.
Bit Descriptions:
RSVD: Reserved. Unknown during read, ignored during write.
IDEEN: IDE master enable.
PIO: Polled IO operation selection.
MDMA: Multiword DMA operation selection.
UDMA: Ultra DMA operation selection.
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16
RSVD
1514131211109876543210
RSVD WST MODE UDMA MDMA PIO IDEEN
Vue de la page 780
1 2 ... 776 777 778 779 780 781 782 783 784 785 786 ... 823 824

Commentaires sur ces manuels

Pas de commentaire