SDMJ-32 SanDisk, SDMJ-32 Datasheet - Page 80

• 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
5.18.4
5.18.5
5.19
R3 Format
Data Response
Data Tokens
The card sends this response token when an READ_OCR command is received. The
response length is five bytes. The structure of the first byte (MSB) is identical to response
type R1. The other four bytes contain the OCR Register.
Figure 5-17
Every data block written to the card is acknowledged by a data response token. The token
is one byte long and has the format shown in Figure 5-18.
Figure 5-18
The meaning of the status bits is defined as follows:
In case of any error, CRC or Write, during a Write Multiple Block operation, the host will
abort the operation using the Stop Transmission token. In case of a write error, the host
may send CMD13 (SEND_STATUS) in order to discover the cause of the write problem.
Read and write commands have data transfers associated with them. Data is being
transmitted or received via data tokens. All data bytes are transmitted MSB first.
Data tokens are 4 to (N+3) bytes long
• First byte: Start Block.
• Bytes 2-(N+1): User data.
• Last two bytes: 16-bit CRC.
3
•
•
•
N = the data block length set by the SET_BLOCK_LENGTH command
39
0
010 —Data accepted.
101 —Data rejected due to a CRC error.
110 —Data rejected due to a write error
R3 Response Format
Data Response Format
R1
7
x
6
x
32
5-15
x
3
and have the following format:
31
0
MultiMediaCard/RS-MultiMediaCard Product Manual
Status
0
1
OCR
Chapter 5 –SPI Mode
04/21/05
0