Atmel ARM-Based Evaluation Kit AT91SAM9N12-EK AT91SAM9N12-EK Data Sheet
Product codes
AT91SAM9N12-EK
596
SAM9N12/SAM9CN11/SAM9CN12 [DATASHEET]
11063K–ATARM–05-Nov-13
• OPDCMD: Open Drain Command
0 (PUSHPULL): Push pull command.
1 (OPENDRAIN): Open drain command.
• MAXLAT: Max Latency for Command to Response
0 (5): 5-cycle max latency.
1 (64): 64-cycle max latency.
• TRCMD: Transfer Command
• TRDIR: Transfer Direction
0 (WRITE): Write.
1 (READ): Read.
• TRTYP: Transfer Type
• IOSPCMD: SDIO Special Command
• ATACS: ATA with Command Completion Signal
0 (NORMAL): Normal operation mode.
1 (COMPLETION): This bit indicates that a completion signal is expected within a programmed amount of time (HSMCI_CSTOR).
• BOOT_ACK: Boot Operation Acknowledge
The master can choose to receive the boot acknowledge from the slave when a Boot Request command is issued. When set to
one this field indicates that a Boot acknowledge is expected within a programmable amount of time defined with DTOMUL and
DTOCYC fields located in the HSMCI_DTOR. If the acknowledge pattern is not received then an acknowledge timeout error is
raised. If the acknowledge pattern is corrupted then an acknowledge pattern error is set.
one this field indicates that a Boot acknowledge is expected within a programmable amount of time defined with DTOMUL and
DTOCYC fields located in the HSMCI_DTOR. If the acknowledge pattern is not received then an acknowledge timeout error is
raised. If the acknowledge pattern is corrupted then an acknowledge pattern error is set.
Value
Name
Description
0
NO_DATA
No data transfer
1
START_DATA
Start data transfer
2
STOP_DATA
Stop data transfer
3
–
Reserved
Value
Name
Description
0
SINGLE
MMC/SD Card Single Block
1
MULTIPLE
MMC/SD Card Multiple Block
2
STREAM
MMC Stream
4
BYTE
SDIO Byte
5
BLOCK
SDIO Block
Value
Name
Description
0
STD
Not an SDIO Special Command
1
SUSPEND
SDIO Suspend Command
2
RESUME
SDIO Resume Command