hb28j128mm3 Renesas Electronics Corporation., hb28j128mm3 Datasheet - Page 8
![no-image](/images/manufacturer_photos/0/5/561/renesas_electronics_corporation__sml.jpg)
hb28j128mm3
Manufacturer Part Number
hb28j128mm3
Description
Multimediacard 32 Mbyte/64 Mbyte/128 Mbyte/256 Mbyte/512 Mbyte
Manufacturer
Renesas Electronics Corporation.
Datasheet
1.HB28J128MM3.pdf
(91 pages)
- Current page: 8 of 91
- Download datasheet (697Kb)
HB28K032/L064/J128/J256/J512MM3, HB28K032/L064/J128/J256RM3
Registers
These Renesas MultiMediaCards contain the following information registers:
Name
OCR
CID
RCA
CSD
The CID and RCA are used for identifying and addressing the MultiMediaCard. The CSD contains the
card specific data record. This record is a set of information fields to define the operation conditions of the
MultiMediaCard.
For the user, the CID is read only register. The CSD contains read only area and some of one time or
multiple programmable area by the customer or provider. They are read out by special commands (refer to
Chapter “Commands”). The RCA registers are write only registers. Unlike CID and CSD, RCA looses its
contents after powering down the card. Its value is reassigned in each initialization cycle. The
MultiMediaCard registers usage in SPI mode is summarized in Table “MultiMediaCard Registers in SPI
Mode”:
MultiMediaCard Registers in SPI Mode
Name
OCR
CID
RCA
CSD
Rev.0.02, Sep.15.2004, page 8 of 89
Width
32
128
16
128
Available in SPI mode Width (Bytes)
Yes
Yes
No
Yes
Type
Programmed by the
manufacturer.
Read only for user.
Programmed by the
manufacturer.
Read only for user.
Programmed during
initialization, not readable.
Programmed by the
manufacturer. Partially
programmable by the user.
4
16
16
Description
Supported voltage range, card power up status bit.
Card identification number, card individual number for
identification.
Relative card address, local system address of a card,
dynamically assigned by the host during initialization.
Card specific data, information about the card operation
conditions.
Description
Operation condition register.
Card identification data (serial number, manufacturer ID
etc.)
Card specific data, information about the card operation
conditions.
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