HC210 datasheet(147/228 Pages) ALTERA

147 / 228 page

Altera Corporation

6–19

September 2008

Making Global Assignments

You can specify a number of other I/O parameters by using the

set_instance_assignment command. Some of the more common

parameters are listed in Table 6–7.

For more information on I/O availability in HardCopy II devices, refer

to the I/O Structures and Features section in volume 1 of the HardCopy

Series Handbook.

Table 6–7. Tcl Common I/O Parameter Settings

<name> setting

<value> setting

Description

weak_pull_up_resistor

Implement a weak pull-up

resistor on the pin.

output_pin_load

integer

Capacitive load for an output

or bidirectional pin. Units of

pF.

fast_output_register

Implements a fast output

adjacent LAB.

fast_output_enable_register

Implement a fast output

enable register in the I/O cell

or/and adjacent LAB.

fast_input_register

Implements a fast input

adjacent LAB.

current_strength_new

2mA, 4mA, 8mA, 10 mA,

12 mA, 16 mA, 18 mA,

20 mA, 24 mA

minimum_current or

maximum_current

Drive strength for an output or

bidi pin.

stratixii_termination

differential

“series 25 ohms with calibration”

“series 25 ohms without calibration”

“series 50 ohms with calibration”

“series 50 ohms without calibration”

On-chip termination (or

impedance matching) for an

I/O pin.

HC210 Datasheet(PDF) 147 Page - Altera Corporation

HC210 Datasheet(HTML) 147 Page - Altera Corporation

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 ...More

Datasheet Download

Link URL