Document No.: FT_000061
FT2232H DUAL HIGH SPEED USB TO MULTIPURPOSE UART/FIFO IC
Datasheet Version 2.09
Clearance No.: FTDI#77
NAME
t1
MIN
15
15
20
5
NOM
MAX
Units
ns
ns
ns
ns
ns
ns
ns
ns
COMMENT
A0 / CS Setup to WR#
Data setup to WR#
WR# Pulse width
t2
t3
t4
t5
t6
t7
t8
t9
A0/CS Hold from WR#
Data hold from WR#
A0/CS Setup to RD#
Data delay from RD#
A0/CS hold from RD#
Data hold time from RD#
5
15
15
5
50
30
0
ns
Table 4.9 CPU-Style FIFO Interface Operation Signal Timing.
An example of the CPU-style FIFO interface connection is shown in Figure 4.18
FT2232H
Microcontroller
Channel A
D0
IO10
IO11
IO12
IO13
IO14
IO15
IO16
IO17
or B
D1
D2
D3
D4
D5
D6
D7
RD#
IO20
IO21
IO22
IO23
WR#
A0
CS#
SI / WU
IO24
IO25
( Optional )
( Optional )
PWREN#
Figure 4.18 CPU-Style FIFO Interface Example
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