Table of Contents
Advertisement
88F6810, 88F6820 and 88F6828
Hardware Design Guide
2.
If the design cannot meet the above requirements for length and separation, simulation should
be performed to ensure proper isolation between signals.
3.
The separation is defined from edge-to-edge of 2 traces.
4.
Separation is required between any signals that are not in the same group or sub-group.
5.
The tolerance for the matched impedance value is the manufacturing tolerance. The design
tolerance should be kept to a minimum.
6.
R1 is a pull-up resistor to the interface power rail.
7.
The R1 resistor should be placed as close as possible to the peer device, make the stub leading
to R1 as short as possible.
8.
Refer to the SDIO 3.0/MMC 4.4 specifications if fine tuning of this value is required (in
accordance to the internal pulldown/pullup values of the Marvell device). For further information
refer to the device hardware specifications document.
Doc. No. MV-S302310-U0 Rev. A
Page 136
Document Classification: Public
Copyright © 2017 Marvell
August 30, 2017
Advertisement
Table of Contents
