Datasheet

Table Of Contents
40.3.2 Application Block Diagram
Application Layer
ex: File System, Audio, Security, etc.
MMC/e.MMC SDCard SDIO
Physical Layer
SD/MMC Host Controller
(SDHC)
40.4 Signal Description
Signal Name Type Description
SDCD Input SD Card / SDIO /e.MMC Card
Detect
SDCMD I/O SD Card / SDIO /e.MMC
Command/Response Line
SDWP Input SD Card Connector Write Protect
Signal
SDCK Output SD Card / SDIO /e.MMC Clock
Signal
SDDAT[3:0] I/O SD Card / SDIO /e.MMC data
lines
40.5 Product Dependencies
40.5.1 I/O Lines
In order to use the I/O lines, the I/O pins must be configured using the IO Pin Controller (PORT).
40.5.2 Power Management
This peripheral can continue to operate in any sleep mode where its source clock is running. Refer to PM
– Power Manager for details on the different sleep modes.
40.5.3 Clocks
The peripheral is using two generic clocks and one bus clock.
The clock for the SDHC bus interface (CLK_AHB_SDHC) is enabled and disabled by the Main Clock
Controller. The default state of CLK_AHB_SDHC can be found in the Peripheral Clock Masking section.
SAM D5x/E5x Family Data Sheet
SD/MMC Host Controller ...
© 2019 Microchip Technology Inc.
Datasheet
DS60001507E-page 1313