Datasheet
Vinculum-II Embedded Dual USB Host Controller IC
Version 1.7
Document No.: FT_000138 Clearance No.: FTDI#143
Figure 6.22 Asynchronous FIFO mode Read / Write Cycle
Time
t1
Description
RD# inactive to RXF#
Minimum
Maximum
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
1
100
1
14
t2
RXF# inactive after RD# cycle
RD# to DATA
t3
14
14
t4
RD# active pulse width
30
0
t5
RD# active after RXF#
t6
WR# active to TXE# inactive
TXE# inactive after WR# cycle
DATA to TXE# active setup time
DATA hold time after WR# inactive
WR# active pulse width
WR# active after TXE#
1
t7
100
5
t8
t9
5
t10
t11
30
0
Table 6.17 Asynchronous FIFO mode Read / Write Timing
60
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