PPDS

UltraScale Architecture SelectIO Resources User Guide (UG571)

Document ID
UG571
Release Date
2022-08-31
Revision
1.14 English
Table 1-62:      Available I/O Bank Type 

HR

HP

Available

N/A

Point-to-point differential signaling (PPDS) is a differential I/O standard for next-generation LCD interface row and column drivers. PPDS inputs require a parallel-termination resistor, either through the use of a discrete resistor on the PCB, or by using the DIFF_TERM_ADV or DIFF_TERM attributes to enable internal termination. PPDS is only available in HR I/O banks and requires a VCCO voltage level of 2.5V. The IOSTANDARD is called PPDS_25.

Table: Allowed Attributes for the PPDS I/O Standard  summarizes the allowed attributes for the PPDS I/O standard. Support is implied for primitives that are derivatives of the primitives listed in Table: Allowed Attributes for the PPDS I/O Standard  (for example: *_DIFF_OUT, *_DCIEN, *_IBUFDISABLE, or *_INTERMDISABLE). Refer to the SelectIO Interface Primitives section for all supported derivatives.

Table 1-63:      Allowed Attributes for the PPDS I/O Standard 

Attributes

Primitives

IBUFDS

OBUFDS or OBUFTDS

Allowed Values

Default

IOSTANDARD

PPDS_25

DIFF_TERM

TRUE

FALSE

FALSE

N/A

DIFF_TERM_ADV

TERM_NONE

TERM_100

TERM_NONE

N/A