at91sam9260-cj ATMEL Corporation, at91sam9260-cj Datasheet - Page 406
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at91sam9260-cj
Manufacturer Part Number
at91sam9260-cj
Description
At91 Arm Thumb Microcontrollers
Manufacturer
ATMEL Corporation
Datasheet
1.AT91SAM9260-CJ.pdf
(790 pages)
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31.9.5.3
Figure 31-26. Master Performs a General Call
406
GCACC
SVACC
TXD
AT91SAM9260
General Call
S
GENERAL CALL
GENERAL CALL
0000000 + W
The general call is performed in order to change the address of the slave.
If a GENERAL CALL is detected, GACC is set.
After the detection of General Call, it is up to the programmer to decode the commands which
come afterwards.
In case of a WRITE command, the programmer has to decode the programming sequence and
program a new SADR if the programming sequence matches.
Figure 31-26 on page 406
Note:
This method allows the user to create an own programming sequence by choosing the program-
ming bytes and the number of them. The programming sequence has to be provided to the
master.
WRITE command = 00000100X
A
RESET command = 00000110X
Reset or write DADD
Reset after read
describes the General Call access.
A
DATA1
Programming sequence
New SADR
A
DATA2
A
New SADR
6221G–ATARM–31-Jan-08
A
P
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