I/O Tile Overview

UltraScale Architecture SelectIO Resources User Guide (UG571)

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

UltraScale architecture-based devices provide various I/O offerings: High-performance (HP), high-density (HD), and high-range (HR) I/O banks.

The HP I/O banks are designed to meet the performance requirements of high-speed memory and other chip-to-chip interfaces with voltages up to 1.8V.

The HR I/O banks are designed to support a wider range of I/O standards with voltages up to 3.3V.

The HD I/O banks are designed to support low-speed interfaces.

UltraScale devices contain different combinations of HP, HD, and HR I/O banks, and not all types of banks are supported in all devices. The UltraScale Architecture and Product Overview (DS890) [Ref 3] documents the available number of each type of bank for all devices.

Kintex UltraScale and Virtex UltraScale families have high-performance I/O banks (HP I/Os) and high-range I/O banks (HR I/Os) with corresponding logic resources.

°SelectIO Interface Resources describes the electrical behavior of the output drivers and input receivers, and gives detailed examples of many standard interfaces available in these devices.

°SelectIO Interface Logic Resources describes the I/O logic resources available in these devices.

°Any references to Mobile Industry Processor Interface (MIPI) D-PHY or HD I/O in these chapters do not apply to these devices.

The Zynq UltraScale+, Kintex UltraScale+, and Virtex UltraScale+ families have high-performance I/O banks (HP I/Os) with enhanced MIPI D-PHY abilities and the corresponding logic resources. They also have high-density I/Os (HD I/Os) with corresponding logic resources.

°SelectIO Interface Resources describes the electrical behavior of the output drivers and input receivers, and gives detailed examples of many standard interfaces available in these devices for HP I/Os.

°SelectIO Interface Logic Resources describes the I/O logic resources available in these devices for HP I/Os.

°High Density I/O Resources describes the electrical and logical features of HD I/Os that are available in Zynq UltraScale+ devices, Kintex UltraScale+ FPGAs, and some Virtex UltraScale+ FPGAs.

°Any references to HR I/Os in the aforementioned chapters do not apply to these devices.

Outside the aforementioned information, the content in the rest of this chapter does not pertain to HD I/Os. HD I/O information is only described in High Density I/O Resources.

Table: Supported Features in the HR and HP I/O Banks highlights the features supported in the HP and HR I/O banks. See the specific UltraScale device data sheets [Ref 2] for details on the performance and other electrical requirements of the HP and HR I/O banks.

Table 1-1:      Supported Features in the HR and HP I/O Banks

Feature

HP I/O Banks

HR I/O Banks

3.3V I/O standards(1)

N/A

Supported

2.5V I/O standards(1)

N/A

Supported

1.8V I/O standards(1)

Supported

Supported

1.5V I/O standards(1)

Supported

Supported

1.35V I/O standards(1)

Supported

Supported

1.2V I/O standards(1)

Supported

Supported

1.0V POD I/O standard

Supported

N/A

LVDS signaling

Supported(2)

Supported

Digitally-controlled impedance (DCI) and DCI cascading

Supported

N/A

Internal VREF

Supported

Supported

Internal differential termination (DIFF_TERM)

Supported

Supported

IDELAY

Supported

Supported

ODELAY

Supported

Supported

IDELAYCTRL

Supported

Supported

ISERDES

Supported

Supported

OSERDES

Supported

Supported

Transmitter pre-emphasis

Supported

Supported(3)

Receiver equalization

Supported

Supported

Receiver offset control

Supported

Not supported

Receiver VREF scan

Supported

Not supported

MIPI D-PHY

Supported in Virtex UltraScale+, Kintex UltraScale+, and Zynq UltraScale+ devices

Not supported

Notes:

1.The I/O Bank Type column in Table: Attribute Options, Bidirectional Buffer Availability, and DCI Termination Type shows the specific I/O standards that are available in the HP and HR I/O banks.

2.Although LVDS is generally considered a 2.5V I/O standard, it is supported in both the HR and HP I/O banks.

3.Only LVDS pre-emphasis is supported in HR I/O banks.