Toshiba MK6017MAP manual Program I/O Read Timing

360014937

10.4.2 Program I/O Read Timing

DA2, DA1, DA0 -CS0, -CS1

	tASE					tAHE		tAICSI
-DIOR
			tRE				tRDR
						tRDCY
DD15∼ DD0
		tDAC		tRDSE	tDOH
	tCICSV
					tHDTS
-IOCS16	tAICSV			tRD

tA tB

IORDY

				Transfer mode
Symbol	Meaning		0	1	2	3	4
tASE	Address Setup to -DIOR Low	(min.)	70	50	30	30	25
tDAC	Data Valid from -DIOR Low	(max.)
tRE	-DIOR Pulse Width	(min.)	165	125	100	80	70
tRDSE	-DIOR data setup	(min.)	50	35	20	20	20
tDOH	Data Hold from -DIOR High	(min.)	5	5	5	5	5
tHDTS	Data Tri-state from -DIOR High	(max.)	30	30	30	30	30
tAHE	ADDR Hold from -DIOR High	(min.)	20	15	10	10	10
tRDR	-DIOR Inactive	(min.)	-	-	-	70	25
tRDCY	Read Cycle Time	(min.)	600	383	240	180	120
tCICSV	-IOCS16 valid from -CS	(max.)	90	50	40	n/a*	n/a*
tAICSV	-IOCS16 valid from address	(max.)	90	50	40	n/a*	n/a*
tAICSI	-IOCS16 inactive from address	(max.)	60	45	30	n/a*	n/a*
tRD	Read Data Valid to IORDY	(min.)	0	0	0	0	0
tA	IORDY Setup time	(max.)	35	35	35	35	35
tB	IORDY Pulse Width	(max.)	1250	1250	1250	1250	1250

(*) -IOCS16 is specified in ATA-2 specifications. For other modes, this signal is invalid. Drive releases -IOCS16 within the time of tAICSI, but how long it takes to turn to inactive condition is defined by pull up resistance, output impedance and line capacitance.

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