Product manual

Industrial Grade SD Card Interface Description
3-14 SanDisk Industrial Grade SD Product Manual, Rev. 1.0 © 2003 SANDISK CORPORATION
Name Field Width Cell
Type
CSD-Slice CSD Value CSD Code
Lock/unlock)
max. read data block length READ_BL_LEN 4 R [83:80] 512byte 1001b
partial blocks for read allowed READ_BL_PARTIAL 1 R [79:79] Yes 1b
write block misalignment WRITE_BLK_MISALIGN 1 R [78:78] No 0b
read block misalignment READ_BLK_MISALIGN 1 R [77:77] No 0b
DSR implemented DSR_IMP 1 R [76:76] No 0b
Reserved - 2 R [75:74] - 00b
device size C_SIZE 12 R [73:62] SD128=3843
SD064=3807
SD032=1867
SD016=899
SD008=831
F03h
EDFh
74Bh
383h
33Fh
max. read current @VDD min VDD_R_CURR_MIN 3 R [61:59] 75mA 100b
max. read current @VDD max VDD_R_CURR_MAX 3 R [58:56] 75mA 011b
max. write current @VDD min VDD_W_CURR_MIN 3 R [55:53] 75mA 100b
max. write current @VDD max VDD_W_CURR_MAX 3 R [52:50] 75mA 100b
device size multiplier C_SIZE_MULT 3 R [49:47] SD128=64
SD064=32
SD032=32
SD016=32
SD008=16
100b
011b
011b
011b
010b
erase single block enable ERASE_BLK_EN 1 R [46:46] Yes 1b
erase sector size SECTOR_SIZE 7 R [45:39] 32blocks 0011111b
write protect group size WP_GRP_SIZE 7 R [38:32] 128sectors 1111111b
write protect group enable WP_GRP_ENABLE 1 R [31:31] Yes 1b
Reserved for MultiMediaCard compatibility 2 R [30:29] - 00b
write speed factor
Binary
MLC
R2W_FACTOR
R2W_FACTOR
3
3
R
R
[1:16]
[1:4]
X16
X4
100b
010b
max. write data block length WRITE_BL_LEN 4 R [25:22] 512Byte 1001b
partial blocks for write allowed WRITE_BL_PARTIAL 1 R [21:21] No 0
Reserved - 5 R [20:16] - 00000b
File format group FILE_FORMAT_GRP 1 R/W(1) [15:15] 0 0b
copy flag (OTP) COPY 1 R/W(1) [14:14] Not Original 1b
permanent write protection PERM_WRITE_PROTECT 1 R/W(1) [13:13] Not Protected 0b
temporary write protection TMP_WRITE_PROTECT 1 R/W [12:12] Not Protected 0b
File format FILE_FORMAT 2 R/W(1) [11:10] HD w/partition 00b
Reserved 2 R/W [9:8] - 00b
CRC CRC 7 R/W [7:1] - CRC7
not used, always’1’ - 1 - [0:0] - 1b