6.2.2.Timing of Host Interface (PIO)

Figure 13 shows the Host Interface Timings

Address valid*1

t2 t1

DIOR-/DIOW-*1

Write data valid*1

Read data valid*1

t7

IOCS16-*1

tA tB

IORDY

t0

t9

t2i

t3

t4

t5

 

 

 

 

 

t6Z

 

 

 

 

t6

t8 tRD

*1: In all timing diagrams, the low line indicator negated, and the upper line indicators asserted.

 

PIO timing parameters min (ns) max (ns)

Min Time (ns)

Max Time (ns)

 

 

 

 

t0

Cycle time

120

 

 

 

 

 

t1

Address valid to DIOR/DIOW-setup

25

 

 

 

 

 

t2

DIOR/DIOW-pulse wide

70

 

 

 

 

 

t2i

DIOR/DIOW-recovery time

25

 

 

 

 

 

t3

DIOW-data setup

20

 

 

 

 

 

t4

DIOW-data hold

10

 

 

 

 

 

t5

DIOR-data setup

20

 

 

 

 

 

t6

DIOR-data hold

5

 

 

 

 

 

t6Z

DIOR-data tristate

 

30

 

 

 

 

t7

Addr valid to IOCS 16-assertion

 

30

 

 

 

 

t8

Addr valid to IOCS 16-negation

 

30

 

 

 

 

t9

DIOR/DIOW-to address valid hold

10

 

 

 

 

 

tRD

Read Data Valid to IORDY active

0

 

 

 

 

 

tA

IORDY setup

 

35

 

 

 

 

tB

IORDY pulse wide

 

1250

 

 

 

 

Figure 13 Host Interface Timing (PIO Mode4)

17/28

SD-R6112 Rev.1.0

Page 22
Image 22
Toshiba SD-R6112 specifications 17/28, Shows the Host Interface Timings