IDDRE1 Attributes

UltraScale Architecture SelectIO Resources User Guide (UG571)

Document ID
UG571
Release Date
2022-08-31
Revision
1.14 English

Table: IDDRE1 Attributes lists the IDDRE1 attributes.

Table 2-2:      IDDRE1 Attributes 

Attribute

Values

Default

Type

Description

DDR_CLK_EDGE

OPPOSITE_EDGE SAME_EDGE SAME_EDGE_PIPELINED

OPPOSITE_EDGE

String

Sets the IDDRE1 mode of operation with respect to clock edge.

IS_C_INVERTED

0 or 1

0

Bit

Sets a local clock inversion for C input when 1.

IS_CB_INVERTED

0 or 1

0

Bit

Sets a local clock inversion for CB input. When IS_CB_INVERTED=1, C and CB must be driven by the same global clock buffer. When IS_CB_INVERTED=0, CB must be driven by the same global clock buffer through an inverter.