Kontron COMe-cSP2 Instrukcja Użytkownika Pobierz pdf (Strona 50)

COMe-cSP2 / Special Features

5.4 SD-card Interface (SDIO)

The SD card standard is a standard for removable memory storages designed and licensed by the SD Card Association

(http://sdcard.org). The card form factor, electrical interface, and protocol are all part of the SD Card specification.

The Intel® US15W System Controller Hub supports up to 3 SDIO interfaces. On COMe-cSP2 the first interface SDIO#0 is

used for the onboard miniSD Card socket. The second Port SDIO#1 provides the SD card interface shared with the

module GPIO signals to the baseboard. SDIO#3 is not used and deactivated. The integrated SDIO 1.1 / MMC 4.1

controller in US15W SCH only supports byte-address mode for SDIO storage cards up to 2GB. Sector-addressing and

SDHC is not supported.

» MMC 4.1 transfer rates can be up to 48MHz and bus widths of 1, 4 or 8 bits

» SDIO 1.1 supports transfer rates up to 24MHz and bus widths of 1 or 4 bits

Onboard miniSD/MMC Socket J4

Description

DAT3/CD - Data Line 3/Card Detection

CMD - Command/Response

VSS 1 - Supply Voltage - GND

VDD - Supply Voltage - 3.3V

CLK - Clock

VSS2 - Supply Voltage - GND

DAT0 - Data Line 0

DAT1 - Data Line 1

DAT2 - Data Line 2

n.c.

Detect

Ground 0

Ground 1

Ground 2

SDIO/GPIO on COM Express® Connector

General purpose Input/Output

SD card interface signals

GPI0

SLOT0_DATA0

GPI1

SLOT0_DATA1

GPI2

SLOT0_DATA2

GPI3

SLOT0_DATA3

GPO0

SLOT0_CLK

GPO1

SLOT0_CMD

GPO2

SLOT0_WP

GPO3

SLOT0_CD#

1 2 ... 45 46 47 48 49 50 51 52 53 54 55 ... 108 109

Komentarze do niniejszej Instrukcji

Brak uwag

Kontron COMe-cSP2 Instrukcja Użytkownika Strona 50

Komentarze do niniejszej Instrukcji

Powiązane produkty i podręczniki dla Sprzęt komputerowy Kontron COMe-cSP2