hb28j128mm3 Renesas Electronics Corporation., hb28j128mm3 Datasheet - Page 25
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: 25 of 91
- Download datasheet (697Kb)
HB28K032/L064/J128/J256/J512MM3, HB28K032/L064/J128/J256RM3
Commands
The command set of the MultiMediaCard system is divided into classes corresponding to the type of card
(see also [1]). These Renesas MultiMediaCards support the following command classes:
Command Classes (class 0 to class 2)
Card command
class (CCC)
class 0
class 1
class 2
Command Classes (class 2 to class 7)
Card command
class (CCC)
class 2
class 3
class 4
class 5
class 6
class 7
Class 0 is mandatory and supported by all cards. It represents the card identification and initialization
commands, which are intended to handle different cards and card types on the same bus lines. The Card
Command Class (CCC) is coded in the card specific data register of each card, so that the host knows how
to access the card. There are four kinds of commands defined on the MultiMediaCard bus:
Rev.0.02, Sep.15.2004, page 25 of 89
broadcast commands (bc) sent on CMD line, no response
broadcast commands with response (bcr) sent on CMD line, response (all cards simultaneously) on
CMD line
addressed (point-to-point) commands (ac) sent on CMD line, response on CMD line
addressed (point-to-point) data transfer commands (adtc) sent on CMD line, response on CMD line,
data transfer on DAT line
block write
write protection
Class description
block read
stream write
erase
lock card
Class description
basic
stream read
block read
Supported commands
20 23 24 25 26 27 28 29 30 32 33 34 35 36 37 38 42
+
Supported commands
0
+
+
+
1
+
+
+
2
+
3
+
+
4
+
+
+
7
+
+
9
+
+
+
10 11 12 13 15 16 17 18
+
+
+
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+
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