t6
t3
PDATA
t1
t2
t5
nSTROBE
t4
BUSY
FIGURE 27 - PARALLEL PORT FIFO TIMING
TABLE 106 - PARALLEL PORT FIFO TIMING
NAME
DESCRIPTION
DATA Valid to nSTROBE Active
nSTROBE Active Pulse Width
MIN
600
600
450
TYP
MAX
UNITS
ns
t1
t2
t3
t4
t5
t6
ns
DATA Hold from nSTROBE Inactive (Note 1)
nSTROBE Active to BUSY Active
ns
500
ns
BUSY Inactive to nSTROBE Active
680
80
ns
BUSY Inactive to PDATA Invalid (Note 1)
ns
Note 1: The data is held until BUSY goes inactive or for time t3, whichever is longer. This only applies if
another data transfer is pending. If no other data transfer is pending, the data is held indefinitely.
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