ATSAM3S-EK Atmel, ATSAM3S-EK Datasheet - Page 803
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ATSAM3S-EK
Manufacturer Part Number
ATSAM3S-EK
Description
KIT EVAL FOR ATSAM3S4C
Manufacturer
Atmel
Series
SAM3Sr
Type
MCUr
Specifications of ATSAM3S-EK
Contents
Board, Cables, Power Supply
Silicon Manufacturer
Atmel
Core Architecture
ARM
Core Sub-architecture
Cortex-M3
Kit Contents
Board
Features
TFT Colour LCD Display, SD/MMC Interface
Svhc
No SVHC (15-Dec-2010)
Rohs Compliant
Yes
For Use With/related Products
*
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
ATSAM3S-EK
Manufacturer:
Atmel
Quantity:
135
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Figure 35-7. Command/Response Functional Flow Diagram
Note:
6500C–ATARM–8-Feb-11
1. If the command is SEND_OP_COND, the CRC error flag is always present (refer to R3 response in the High Speed MultiMe-
dia Card specification).
The following flowchart shows how to send a command to the card and read the response if
needed. In this example, the status register bits are polled but setting the appropriate bits in the
interrupt enable register (HSMCI_IER) allows using an interrupt method.
Check error bits in the
Wait for command
status register
ready status flag
(1)
HSMCI_ARGR = Argument
Set the command argument
HSMCI_CMDR = Command
Read response if required
Does the command involve
Status error flags?
Set the command
Read HSMCI_SR
Read HSMCI_SR
a busy indication?
RETURN OK
NOTBUSY
CMDRDY
1
1
(1)
RETURN ERROR
Yes
No
0
0
RETURN OK
SAM3S Preliminary
(1)
803
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