TS2GUSD-P3 Transcend Information. Inc., TS2GUSD-P3 Datasheet - Page 13

• Manufacturer Part Number: TS2GUSD-P3
• Description: 2gb Microsd Card Reader P3
• Manufacturer: Transcend Information. Inc.

Defines if the configurable driver stage is integrated on the card. If set, a driver stage register (DSR)must be
implemented also.
•
This parameter is used to compute the user’s data card capacity (not include the security protected area). The memory
capacity of the card is computed from the entries C_SIZE, C_SIZE_MULT and READ_BL_LEN as follows:
where
Maximum capacity of the card, compliant to SD Physical Specification Versoin1.01 shall be up to2G bytes (2
be consistent with the maximum capacity (2G bytes) of SD Memory Card File System Specification Ver.1.01.
To indicate 2GByte card, BLOCK_LEN shall be 1024 bytes.
Therefore, the maximal capacity which can be coded is 4096*512*1024 = 2G bytes.
Example: A 32Mbyte card with BLOCK_LEN = 512 can be coded by C_SIZE_MULT = 3 and C_SIZE = 2000.
•
The maximum values for read and write currents at the minimal power supply V
•
The maximum values for read and write currents at the maximal power supply V
•
This parameter is used for coding a factor MULT for computing the total device size (see ‘C_SIZE’).
C_SIZE
VDD_R_CURR_MIN, VDD_W_CURR_MIN
VDD_R_CURR_MAX, VDD_W_CURR_MAX
C_SIZE_MULT
Transcend Information Inc.
T
T
T
S
S
S
2
2
2
G
G
G
BLOCKNR = (C_SIZE+1) * MULT
MULT = 2
BLOCK_LEN = 2
U
U
U
S
S
S
D
D
D
C_SIZE_MULT+2
-
-
-
P
P
P
3
3
3
READ_BL_LEN
memory capacity = BLOCKNR * BLOCK_LEN
,
(C_SIZE_MULT < 8)
(READ_BL_LEN < 12)
13
2GB microSD Card + Reader P3
DD
DD
are coded as follows:
are coded as follows:
31
bytes) to