Manual
Introduction to Cactus Technologies Industrial
Grade CF -3XX/-3XX-P1/-3XX-WP1 Series Products
01
803M Series Industrial Grade microSD Card Product Manual v2.0Cactus Technologies
®
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This section describes the values in the SD registers of Cactus Technologies microSD products.
Operation Condition Register (OCR)
4.1.
OCR bit VDD range Value
[6:0] Reserved 000 0000 b
[7] 1.65V - 1.95V 0 b
[14:8] 2.0V - 2.6V 000 0000 b
[28:15] 2.7V - 3.6V 1 1111 1111 b
[29:24] Reserved 00 0000 b
[30] Card capacity status
[31] Card power status
Register
Table04
This 32-bit register stores the VDD voltage prole of the card. In addition, bit 31 is a status bit which
is set to '1' if the card power up procedure has completed. When bit 31 is set, bit 30 will be valid and
identies whether the card is a Standard ('0') or High Capacity ('1') SD card.
Contiguous I/O Mapped Addressing
4.2.
This 128-bit register contains the identication information used during the card identication
phase.