Difference between revisions of "SU700"
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Each channel can drive current up to 60 mA, in this way a 50 Ohm terminated cable can be use to avoid reflections. '''Meter la frecuencia máxima de conmutación'''. If the IO was configured as input a 50 Ohm resistor can be parallel connected to the input to avoid reflections, this can be done through a FPGA register. | Each channel can drive current up to 60 mA, in this way a 50 Ohm terminated cable can be use to avoid reflections. '''Meter la frecuencia máxima de conmutación'''. If the IO was configured as input a 50 Ohm resistor can be parallel connected to the input to avoid reflections, this can be done through a FPGA register. | ||
| + | A pull up resistor can be populated in each channel if needed. In this function mode the 50 Ohm resistor must be not connected. | ||
| − | + | The submodule contains 5 LEDs, witch are direct connected to FPGA outputs, the LEDs can be configured through internal registers. | |
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= Revisions = | = Revisions = | ||
Revision as of 14:07, 30 June 2013
This module has 5 independent 3.3V TTL input/output, each of this IOs is provided with a LEMO connector. The signals can be configured as input or output through a FPGA register. Each channel can drive current up to 60 mA, in this way a 50 Ohm terminated cable can be use to avoid reflections. Meter la frecuencia máxima de conmutación. If the IO was configured as input a 50 Ohm resistor can be parallel connected to the input to avoid reflections, this can be done through a FPGA register.
A pull up resistor can be populated in each channel if needed. In this function mode the 50 Ohm resistor must be not connected.
The submodule contains 5 LEDs, witch are direct connected to FPGA outputs, the LEDs can be configured through internal registers.
Revisions
Pinout
SU700 pin table (direction shown for the SU board)
power in +5V 2 1 +5V in power
LVTTL in DOUT<4> 4 3 DIN<5> out LVTTL
LVTTL in DOUT<5> 6 5 DOEn<5> in LVTTL
LVTTL in DOEn<4> 8 7 - - NC
LVTTL in DOUT<3> 10 9 DIN<4> out LVTTL
LVTTL in DOEn<3> 12 11 DIN<3> out LVTTL
LVTTL in DOUT<2> 14 13 DIN<2> out LVTTL
LVTTL in DOEn<2> 16 15 DIN<1> out LVTTL
LVTTL in DOUT<1> 18 17 DOEn<1> in LVTTL
LVTTL in LEDn<5> 20 19 LEDn<4> in LVTTL
LVTTL in LEDn<3> 22 21 LEDn<2> in LVTTL
NC - - 24 23 LEDn<1> in LVTTL
NC - - 26 25 - - NC
NC - - 28 27 - - NC
NC - - 30 29 - - NC
NC - - 32 31 - - NC
NC - - 34 33 - - NC
power in GND 36 35 GND in power
DIN<n> - Input channel n
DOUT<n> - Output channel n
DOEn<n> - Output enable (active low) channel n
LEDn<n> - LED n (active low)
