HB28K032MM3 Datasheet, PDF (18/91 Pages) Renesas Technology Corp – MultiMediaCard 32 MByte/64 MByte/128 MByte/256 MByte/512 MByte

HB28K032/L064/J128/J256/J512MM3, HB28K032/L064/J128/J256RM3
Card Capacity
32 MByte
64 MByte
128 MByte
256 MByte
512 MByte
Value
6 (80 mA)
6 (80 mA)
6 (80 mA)
6 (80 mA)
6 (80 mA)
For more details refer to Chapter “Characteristics”.
• C_SIZE_MULT
This parameter is used for coding a factor MULT for computing the total device size (refer to “C_SIZE”).
The factor MULT is defined as 2 . ^{C_SIZE_MULT+2}
Multiply Factor for the Device Size
C_SIZE_MULT
0
1
2
3
4
5
6
7
MULT
2² = 4
2³ = 8
2⁴ = 16
2⁵ = 32
2⁶ = 64
2⁷ = 128
2⁸ = 256
2⁹ = 512
Remark
The card capacity is shown at “C_SIZE”.
• ERASE_GRP_SIZE
The content of this register is a 5 bit binary coded value, used to calculate the size of the erasable unit of
these Renesas MultiMediaCards. The size of the erase unit (also referred to as erase group in chapter
“Memory Array Partitioning”) is determined by the ERASE_GRP_SIZE and the ERASE_GRP_MULT
entries of the CSD, using the following equation:
size of erasable unit = (ERASE_GRP_SIZE + 1) * (ERASE_GRP_MULT + 1)
The parameter ERASE_GRP_SIZE is permanently assigned to the value ‘0’. The size of erasable unit for
these Renesas MultiMediaCards is (0+1) * (15+1) = 16, which means that the 8 KByte area can be erased
in a single erase group command (CMD35, CMD36 and CMD38).
Rev.0.02, Sep.15.2004, page 18 of 89