Datasheet

136
4341H–MP3–10/07
AT8xC51SND2C/MP3B
Figure 18-1. Sequential Read Operation
Figure 18-2. (Multiple) Block Read Operation
As shown in Figure 18-3 and Figure 18-4 the data write operation uses a simple busy signalling
of the write operation duration on the data line (MDAT).
Figure 18-3. Sequential Write Operation
Figure 18-4. Multiple Block Write Operation
Figure 18-5. No Response and No Data Operation
Data Stream
Command ResponseMCMD
MDAT
Data Stop OperationData Transfer Operation
Command Response
Stop Command
Data Block
MCMD
MDAT
Data Stop OperationBlock Read Operation
CRC
Multiple Block Read Operation
Command Response Command Response
Data Block CRC Data Block CRC
Stop Command
Data Stream
MCMD
MDAT
Data Stop OperationData Transfer Operation
Command ResponseCommand Response
Stop Command
Busy
MCMD
MDAT
Data Stop OperationBlock Write Operation
Multiple Block Write Operation
BusyData Block CRC Data Block CRC
Command Response Command Response
Stop Command
Status BusyStatus
CommandMCMD
MDAT
No Data OperationNo Response Operation
Command Response