Timing; Pio Data Transfer; Figure 5.9 Pio Data Transfer Timing - Fujitsu MHR2010AT Product Manual

5.6 Timing

5.6.1 PIO data transfer

Figure 5.9 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
C141-E145-02EN
t1
t2
t5
t10
t12
Timing parameter

Figure 5.9 PIO data transfer timing

t0
t9
t2i
t3 t4
t6
t11
Min.
120
25
70
25
20
10
—
5
10
—
0
—
5.6 Timing
Max. Unit
— ns
— ns
— ns
— ns
— ns
— ns
50 ns
— ns
— ns
35 ns
— ns
1,250 ns
5-127