EP4CE30F29C7N Datasheet, PDF (138/488 Pages) Altera Corporation – Cyclone IV Device Handbook, Volume 1

6–32
Chapter 6: I/O Features in Cyclone IV Devices
High-Speed I/O Standards Support
RSDS, Mini-LVDS, and PPDS I/O Standard Support in Cyclone IV Devices
The RSDS, mini-LVDS, and PPDS I/O standards are used in chip-to-chip applications
between the timing controller and the column drivers on the display panels such as
LCD monitor panels and LCD televisions. Cyclone IV devices meet the National
Semiconductor Corporation RSDS Interface Specification, Texas Instruments
mini-LVDS Interface Specification, and National Semiconductor Corporation PPDS
Interface Specification to support RSDS, mini-LVDS and PPDS output standards,
respectively.
f For Cyclone IV devices RSDS, mini-LVDS, and PPDS output electrical specifications,
refer to the Cyclone IV Device Datasheet chapter.
f For more information about the RSDS I/O standard, refer to the RSDS specification
from the National Semiconductor website (www.national.com).
Designing with RSDS, Mini-LVDS, and PPDS
Cyclone IV I/O banks support RSDS, mini-LVDS, and PPDS output standards. The
right I/O banks support true RSDS, mini-LVDS, and PPDS transmitters. On the top
and bottom I/O banks, RSDS, mini-LVDS, and PPDS transmitters are supported using
two single-ended output buffers with external resistors. The two single-ended output
buffers are programmed to have opposite polarity.
Figure 6–15 shows an RSDS, mini-LVDS, or PPDS interface with a true output buffer.
Figure 6–15. Cyclone IV Devices RSDS, Mini-LVDS, or PPDS Interface with True Output Buffer on
the Right I/O Banks
Cyclone IV Device
True RSDS, Mini-LVDS,
or PPDS Transmitter
50 Ω
50 Ω
RSDS, Mini-LVDS,
or PPDS Receiver
100 Ω
Figure 6–16 shows an RSDS, mini-LVDS, or PPDS interface with two single-ended
output buffers and external resistors.
Figure 6–16. RSDS, Mini-LVDS, or PPDS Interface with External Resistor Network on the Top and
Bottom I/O Banks ⁽¹⁾
Cyclone IV Device
Emulated RSDS,
Mini-LVDS, or PPDS
Transmitter
Resistor Network
R_S
R_P
R_S
50 Ω
50 Ω
RSDS, Mini-LVDS,
or PPDS Receiver
100 Ω
Cyclone IV Device Handbook,
Volume 1
May 2013 Altera Corporation