Pio Data Transfer Timing - Fujitsu MPG3XXXAH Product Manual

5.6 Timing
5.6.1 PIO data transfer
Figure 5.8 shows of the data transfer timing between the device and the host system.
Addresses
DIOR-/DIOW-
Write data
DD0-DD15
Read data
DD0-DD15
IORDY
Symbol
t0 Cycle time
t1 Data register selection setup time for DIOR-/DIOW-
t2 Pulse width of DIOR-/DIOW-
t2i Recovery time of DIOR-/DIOW-
t3 Data setup time for DIOW-
t4 Data hold time for DIOW-
t5 Time from DIOR- assertion to read data available
t6 Data hold time for DIOR-
t9 Data register selection hold time for DIOR-/DIOW-
t10 Time from DIOR-/DIOW- assertion to IORDY "low" level
t11 Time from validity of read data to IORDY "high" level
t12 Pulse width of IORDY
t1
t2
t5
t10
t12
Timing parameter
Figure 5.8

PIO data transfer timing

C141-E112-01EN
t0
t9
t2i
t3 t4
t6
t11
Min.
120
25
70
25
20
10
—
5
10
—
0
—
Max. Unit
— ns
— ns
— ns
— ns
— ns
— ns
50 ns
— ns
— ns
35 ns
— ns
1,250 ns
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