Echelon FT 3150 Smart Transceiver - Manual (Page 94)

Chapter 3 - Input/Output Interfaces
88 FT 3120 / FT 3150 Smart Transceiver Data Book
Figure 3.50 Triggered Count Output Latency Values
The active output level depends on whether or not the invert option was used in the declaration of the function block.
The default is high.
Notes
Various combinations of I/O pins may be configured as basic inputs or outputs. The application program may
optionally specify the initial values of basic outputs. Pins configured as outputs may also be read as inputs, returning
the value last written.
Symbol Description Typ @ 10MHz
t
fout
Function call to output pulse 109 µs
t
cod
Last negative sync
Clock edge to output inactive min 550 ns
max 750 ns
t
ret
Return from function 7 µs
END OF
io_out()
OUTPUT
INACTIVE
LAST ACTIVE
SYNC CLOCK
EDGE
OUTPUT
ACTIVE
START OF
io_out()
t
ret
t
cod
t
fout
TIME
SYNC
INPUT
OUTPUT
Control Output
IO10
IO9
IO8
IO0
IO1
IO2
IO3
IO4
IO5
IO6
IO7 Timer/Counter 1
Timer/Counter 2
Count Input mux
High Current Sink Drivers Optional Pull-Up Resistors