hb28b128mm2 Renesas Electronics Corporation., hb28b128mm2 Datasheet - Page 55

• Manufacturer Part Number: hb28b128mm2
• Description: Multimediacard 16 Mbyte/32 Mbyte/64 Mbyte/128 Mbyte
• Manufacturer: Renesas Electronics Corporation.

HB28H016/D032/B064/B128MM2
Reset
GO_IDLE_STATE (CMD0) is the software reset command, which sets the MultiMediaCard into the Idle
State independently of the current state. In the Inactive State the MultiMediaCard is not affected by this
command. After power-on the MultiMediaCard is always in the Idle State. After power-on or command
GO_IDLE_STATE (CMD0) all output bus drivers of the MultiMediaCard is in a high-impedance state and
the card will be initialized with a default relative card address (0x0001). The host runs the bus at the
identification clock rate f
generated by a push-pull driver stage (refer to also Chapter “Power on” for
OD
more details).
CMD0 is valid in all states with the exception of the Inactive State. While in Inactive state the card will not
accept CMD0 unless it is used to switch the card into SPI mode.
Rev.5.0, Jan. 2003, page 53 of 88