AT91RM3400-DK Atmel, AT91RM3400-DK Datasheet - Page 254
AT91RM3400-DK
Manufacturer Part Number
AT91RM3400-DK
Description
KIT DEV FOR AT91RM3400
Manufacturer
Atmel
Series
AT91SAM Smart ARMr
Type
MCUr
Datasheets
1.AT91RM3400-DK.pdf
(461 pages)
2.AT91RM3400-DK.pdf
(2 pages)
3.AT91RM3400-DK.pdf
(25 pages)
Specifications of AT91RM3400-DK
Contents
Evaluation Board, Software and Documentation
Processor To Be Evaluated
AT91RM3400
Data Bus Width
32 bit
Interface Type
RS-232, USB
For Use With/related Products
AT91RM3400
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
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Figure 84. Master Write with One Byte Internal Address and Multiple Data Bytes
Figure 85. Master Read with One, Two or Three Bytes Internal Address and One Data Byte
Figure 86. Master Read with One Byte Internal Address and Multiple Data Bytes
254
TXCOMP
TWD
TWD
TWD
TXCOMP
TXRDY
RXRDY
TWD
TWD
Three bytes internal address
Two bytes internal address
One byte internal address
S
S
S
AT91RM3400
S
S
Write THR
Write THR
Write START Bit
DADR
DADR
DADR
DADR
DADR
W
W
W
W
W
•
•
•
•
•
•
Figure 87 shows a byte write to an Atmel AT24LC512 EEPROM. This demonstrates the use of
internal addresses to access the device.
A
A
A
S = Start
P = Stop
W = Write/read
A = Acknowledge
DADR= Device Address
IADR = Internal Address
A
A
IADR(23:16)
IADR(15:8)
IADR(7:0)
IADR(7:0)
IADR(7:0)
A
A
A
A
A
IADR(15:8)
IADR(7:0)
S
S
DADR
DATA
DADR
A
A
R
Write THR
A
IADR(7:0)
S
A
R
DADR
A
DATA
A
DATA
DATA
R
S
Write THR
Read RHR
A
A
N
DADR
DATA
A
P
Write STOP Bit
DATA
DATA
DATA
R
N
1790A–ATARM–11/03
Read RHR
P
N
N
A
A
P
P
P
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