Digilent 410-123P Bedienungsanleitung PDF herunterladen

™

Revision: December 18, 2009

Note: This document applies to REV B of the board.

215 E Main Suite D | Pullman, WA 99163

(509) 334 6306 Voice and Fax

Doc: 502-123 page 1 of 1

Overview

The PmodSD Secure Digital memory card

module provides a convenient SD card slot for

use with Digilent system and microcontroller

boards.

Features include:

• a 2x6 pin header

• an SD card slot

Functional Description

The PmodSD connects to all communication

and power signals from a standard SD card

and brings them out to the 2x6 pin header on

the board.

The pinout placement on the PmodSD is

designed to readily communicate with a

Digilent system board via SPI. The SPI

interface standard uses four signal lines: SS

(slave select), MOSI (master out slave in),

MISO (master in slave out), and SCK (serial

clock).

SD cards can also be driven in a native mode

that also uses the DAT1 and DAT2 signals as

well as the DAT0, DAT3, CMD, and CLK

signals.

The WP signal can be set by a switch on the

SD card to prevent the host from writing or

erasing data on the card. The CD signal can

be used by the host to indicate that a card is in

the SD slot and is detectable.

For more information on the necessary

commands to communicate with an SD card,

see the card’s data sheet.

SD card slot

1 SS CS/DAT3

2 MOSI DI/CMD

3 MISO DO/DAT0

4 SCK CLK

7 DAT1 DAT1

8 DAT2 DAT2

9 CD CD

10 WP WP

5 GND VSSI

6 VCC VDD

11 GND VSSI

12 VCC VDD

Overview 1
Functional Description 1

Inhaltsverzeichnis

Seite 1 - Functional Description

PPmmooddSSDD™™ RReeffeerreennccee MMaannuuaall Revision: December 18, 2009 Note: This document applies to REV B of the board. 215 E Main Suite D |

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