hb288032mm1 Renesas Electronics Corporation., hb288032mm1 Datasheet - Page 60

• Manufacturer Part Number: hb288032mm1
• Description: Multimediacard 32 Mbyte - Hitachi Semiconductor
• Manufacturer: Renesas Electronics Corporation.

HB288032MM1
This response token is sent by the card when a READ_OCR command is received. The response length is
5 bytes (refer to Figure “R3 Response Format”). The structure of the first (MSB) byte is identical to
response type R1. The other four bytes contain the OCR register.
Every data block written to the card will be acknowledged by a data response token. It is one byte long and
has the following format:
The meaning of the status bits is defined as follows:
‘010’ - Data accepted.
‘101’ - Data rejected due to a CRC error.
Data Tokens
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 2051 bytes long and have
the following format:
60
Format R3
Data Response
First byte: Start Byte
Bytes 2-2049 (depends on the data block length): User data
Last two bytes: 16 bit CRC.
39
0
R1
7
7
1 1 1 1 1 1 1 0
R3 Response Format
Data Response
Data Tokens
32
0
31
status
OCR
0
0
1
0
0