hb288064mm1 Renesas Electronics Corporation., hb288064mm1 Datasheet - Page 17

• Manufacturer Part Number: hb288064mm1
• Description: Multimediacard 64 Mbyte
• Manufacturer: Renesas Electronics Corporation.

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
Multiply Factor for the Device Size
C_SIZE_MULT
0
1
2
3
4
5
6
7
The card capacity is 64 MBytes. The value of the parameter C_SIZE_MULT used in the formula to
calculate the card capacity (refer to parameter “C_SIZE”) for the HB288064MM1 is 4 (multiplier = 64).
The size of an erasable or write protection sector. The content of this register is a binary coded value
defining the number of write blocks (refer to “WRITE_BLK_LEN”) of a sector. The sector size of the
HB288064MM1 is set to 0 (= one write block = 512 bytes).
The size of an erasable group. The content of this register is a binary coded value defining the number of
sectors (refer to “SECTOR_SIZE”) of a group. This parameters value is 15 which means a group size of
(15+1)*512 bytes = 8 kByte.
The size of a write protection group. The content of this register is a binary coded value defining the
number of sectors (refer to “SECTOR_SIZE”) of a group. This parameters value is 1 which means a group
size of (1+1)*(ERASE_GROUP_SIZE) = 16 kByte.
The value is set to ‘1’, meaning group write protection is enabled.
C_SIZE_MULT
SECTOR_SIZE
ERASE_GROUP_SIZE
WP_GRP_SIZE
WP_GRP_ENABLE
MULT
2
2
2
2
2
2
2
2
2
3
4
5
6
7
8
9
= 4
= 8
= 16
= 32
= 64
= 128
= 256
= 512
C_SIZE_MULT+2
.
Remark
HB288064MM1
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