SDMJ-32 SanDisk, SDMJ-32 Datasheet - Page 30

• Manufacturer Part Number: SDMJ-32
• Manufacturer: SanDisk
• Type: MultiMedia Cardr

Specifications of SDMJ-32

• Density: 32MByte
• Operating Supply Voltage (typ): 3.3V
• Operating Temperature (min): -25C
• Operating Temperature (max): 85C
• Package Type: MMC
• Mounting: Socket
• Pin Count: 7
• Operating Temperature Classification: Commercial
• Operating Supply Voltage (min): 2.7V
• Operating Supply Voltage (max): 3.6V
• Programmable: Yes
• Lead Free Status / RoHS Status: Compliant

Revision 1.3
© 2005 SanDisk Corporation
Table 3-16
•
Table 3-17
•
Table 3-18
•
Table 3-19
•
Table 3-20
•
WRITE_BLK_MISALIGN
READ_BLK_MISALIGN
READ_BL_LEN
READ_BL_PARTIAL
READ_BL_PARTIAL—defines whether partial block sizes can be used in block read
commands.
WRITE_BLK_MISALIGN—Defines if the data block to be written by one
command can be spread over more than one physical block of the memory device. The
size of the memory block is defined in WRITE_BL_LEN.
READ_BLK_MISALIGN—defines if the data block to be read by one command can
be spread over more than one physical block of the memory device. The size of the
memory block is defined in READ_BL_LEN.
DSR_IMP—defines if the configurable driver stage is integrated on the card. If set, a
Driver Stage Register (DSR) must be implemented also.
C_SIZE (Device Size)—computes the card capacity. The memory capacity of the card
is computed from the entries C_SIZE, C_SIZE_MULT and READ_BL_LEN as
follows:
DSR_IMP
12-15
11
0
1
0
1
0
1
0
1
0
1
Data Block Length
Bit Definition
Bit Definition
Bit Definition
DSR Implementation Code Table
2
2
2
Reserved
No DSR implemented
DSR Implemented
0
1
11
= 1 byte
= 2 bytes
= 2048 bytes
Only the READ_BL_LEN block size can be used for block-oriented data
transfers.
Smaller blocks can be used as well. The minimum block size will be
equal to minimum addressable unit (one byte).
Signals that crossing physical block boundaries is invalid.
Signals that crossing physical block boundaries is allowed.
Signals that crossing physical block boundaries is invalid.
Signals that crossing physical block boundaries is allowed.
3-15
MultiMediaCard and RS-MultiMediaCard Product Manual
……
Block Length
DSR Type
Definition
Definition
Definition
Chapter 3 –Interface Description
07/15/05