##
'''
-SD card (SPI mode) low-level protocol decoder.
-
-TODO: Description.
+This decoder stacks on top of the 'spi' PD and decodes the SD card
+(SPI mode) low-level protocol.
Most SD cards can be accessed via two different protocols/modes: SD mode
or SPI mode.
* In SPI mode cards cannot guarantee their speed class (the host should
assume class 0, no matter what the card indicates).
* The RCA register is not accessible in SPI mode.
-
-Details:
-TODO
'''
-from .pd import *
-
+from .pd import Decoder