Datasheet

SAM9G45 [DATASHEET]
Atmel-6438O-ATARM-SAM9G45-Datasheet_08-Dec-15
800
• 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 acknowl-
edge 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/SDCard Single Block
1 MULTIPLE MMC/SDCard Multiple Block
2STREAM 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