hb28d064mm2 Renesas Electronics Corporation., hb28d064mm2 Datasheet - Page 10

• Manufacturer Part Number: hb28d064mm2
• Description: Multimediacard 16 Mbyte/32 Mbyte/64 Mbyte/128 Mbyte
• Manufacturer: Renesas Electronics Corporation.

HB28E016/D032/D064/B128MM2
Card Identification (CID)
This register contains the card identification information used during the card identification procedure. It is
a 128 bit wide register, one-time programmable by the provider. The CID is divided into eight slices:
CID Fields
Name
Manufacturer ID
OEM/Application ID
Product name
Product revision
Product serial number
Manufacturing date
7-bit CRC checksum
not used, always 1
Note:
The CID has to be error free. To ensure the correctness of the CID, a 7-bit CRC checksum is added to the
end of the CID. The CRC7 is computed according to chapter “Cyclic Redundancy Check (CRC)”.
Relative Card Address (RCA)
The 16-bit relative card address register carries the card address assigned by the host during the card
identification. This address is used for the addressed host to card communication after the card
identification procedure. The default value of the RCA register is 0x0001. The value 0x0000 is reserved to
set all cards in Standby State with the command SELECT_DESELECT_CARD (CMD7). The RCA is
programmed with the command SET_RELATIVE_ADDRESS (CMD3) during the initialization procedure.
The content of this register is lost after power down. The default value is assigned when an internal reset is
applied by the power up detection unit of these Hitachi MultiMediaCards, or when the command
GO_IDLE_STATE (CMD0) is detected by these Hitachi MultiMediaCards.
10
1. The value of MID is 0x06.
Field
MID
OID
PNM
PRV
PSN
MDT
CRC7
—
Width
8
16
48
8
32
8
7
1
CID-slice
[127:120]
[119:104]
[103:56]
[55:48]
[47:16]
[15:8]
[7:1]
[0:0]
Note
1