Fujitsu MPD3XXXAT manual Physical Interface Interface signals

5.1Physical Interface

5.1.1Interface signals

Table 5.1 shows the interface signals.

Table 5.1 Interface signals

Description	Host	Dir	Dev	Acrorym
Cable select		see note		CSEL
Chip select 0			→	CS0–
Chip select 1			→	CS1–
Data bus bit 0		↔		DD0
Data bus bit 1		↔		DD1
Data bus bit 2		↔		DD2
Data bus bit 3		↔		DD3
Data bus bit 4		↔		DD4
Data bus bit 5		↔		DD5
Data bus bit 6		↔		DD6
Data bus bit 7		↔		DD7
Data bus bit 8		↔		DD8
Data bus bit 9		↔		DD9
Data bus bit 10		↔		DD10
Data bus bit 11		↔		DD11
Data bus bit 12		↔		DD12
Data bus bit 13		↔		DD13
Data bus bit 14		↔		DD14
Data bus bit 15		↔		DD15
Device active or slave present		see note		DASP–
Device address bit 0			→	DA0
Device address bit 1			→	DA1
Device address bit 2			→	DA2
DMA acknowledge			→	DMACK–
DMA request	←			DMARQ
Interrupt request	←			INTRQ
I/O read			→	DIOR–
DMA ready during Ultra DMA data in bursts			→	HDMARDY–
Data strobe during Ultra DMA data out bursts			→	HSTROBE
I/O ready	←			IORDY
DMA ready during Ultra DMA data out bursts	←			DDMARDY–
Data strobe during Ultra DMA data in bursts	←			DSTROBE
I/O write			→	DIOW–
Stop during Ultra DMA data bursts			→	STOP
Passed diagnostics		see note		PDIAG–
Cable type detection				CBLID–
Reset			→	RESET–
Note See signal descriptions

5 - 2 C141-E069-02EN