Atmel ARM-Based Evaluation Kit for SAM4S16C, 32-Bit ARM® Cortex® Microcontroller ATSAM4S-WPIR-RD ATSAM4S-WPIR-RD Data Sheet
Product codes
ATSAM4S-WPIR-RD
909
SAM4S Series [DATASHEET]
Atmel-11100G-ATARM-SAM4S-Datasheet_27-May-14
• OPDCMD: Open Drain Command
0 (PUSHPULL): Push pull command.
1 (OPENDRAIN): Open drain 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.
1 (64): 64-cycle max latency.
• TRCMD: Transfer Command
• TRDIR: Transfer Direction
0 (WRITE): Write.
1 (READ): Read.
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
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_DAT
A
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