Fujitsu MHD2021AT Computer Drive User Manual


 
Interface
5-2 C141-E050-02EN
5.1 Physical Interface
5.1.1 Interface signals
Figure 5.1 shows the interface signals.
INTRQ: INTERRUPT REQUEST
IOCS16-: 16-BIT I/O
PDIAG: PASSED DIAGNOSTICS
DASP-: DEVICE ACTIVE/SLAVE PRESENT
DIOW-: I/O WRITE
STOP: STOP DURING ULTRA DMA DATA BURSTS
DIOR-: I/O READ
HDMARDY: DMA READY DURING ULTRA DMA DATA IN BURSTS
HSTROBE: DATA STROBE DURING ULTRA DMA DATA OUT BURSTS
IORDY: I/O READY
DDMARDY: DMA READY DURING ULTRA DMA DATA OUT BURSTS
DSTROBE: DATA STROBE DURING ULTRA DMA DATA IN BURSTS
Figure 5.1 Interface signals