Datasheet

Bit 28 – SB64SUP 64-Bit System Bus Support
This bit indicates if the peripheral supports the 64-bit Address Descriptor mode and is connected to the
64-bit address system bus.
Value Description
0
64-bit address bus not supported
1
64-bit address bus supported
Bit 26 – V18VSUP Voltage Support 1.8V
Value Description
0
1.8V Voltage supply not supported
1
1.8V Voltage supply supported
Bit 25 – V30VSUP Voltage Support 3.0V
Note: The signal and supply voltages of the peripheral are limited by the supply voltage of the device.
Value Description
0
3.0V Voltage supply not supported
1
3.0V Voltage supply supported
Bit 24 – V33VSUP Voltage Support 3.3V
Note: The signal and supply voltages of the peripheral are limited by the supply voltage of the device.
Value Description
0
3.3V Voltage supply not supported
1
3.3V Voltage supply supported
Bit 23 – SRSUP Suspend/Resume Support
This bit indicates whether the peripheral supports the Suspend/Resume functionality. If this bit is set to 0,
the user does not issue either Suspend or Resume commands because the Suspend and Resume
mechanism (refer to “Suspend and Resume Mechanism” in the “SD Host Controller Simplified
Specification V3.00” ) is not supported.
Value Description
0
Suspend/Resume not supported
1
Suspend/Resume supported
Bit 22 – SDMASUP SDMA Support
This bit indicates whether the peripheral is capable of using SDMA to transfer data between system
memory and the peripheral directly.
Value Description
0
SDMA not supported
1
SDMA supported
Bit 21 – HSSUP High Speed Support
This bit indicates whether the peripheral and the system support High Speed mode and they can supply
SDCLK frequency from 25MHz to 50MHz.
Value Description
0
High Speed not supported
1
High Speed supported
SAM D5x/E5x Family Data Sheet
SD/MMC Host Controller ...
© 2019 Microchip Technology Inc.
Datasheet
DS60001507E-page 1371