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AS5263
Datasheet - A p p l i c a t i o n I n f o r m a t i o n
Table 15. OTP Commands and Communication Interface Modes
Possible Interface
Commands
UNBLOCK
WRITE128
READ128
UPLOAD
DOWNLOAD
FUSE
PASS2FUNC
READ
WRITE
Description
Resets the interface
Writes 128 bits (user + factory settings) into the device
Reads 128 bits (user + factory settings) from the device
Transfers the register content into the OTP memory
Transfers the OTP content to the register content
Command for permanent programming
Change operation mode from communication to operation
Read related to address the user data
Write related to address the user data
AS5263
Communication Mode
SLAVE
SLAVE
SLAVE and MASTER
SLAVE
SLAVE
SLAVE
SLAVE
SLAVE and MASTER
SLAVE
Command
CMD
0x0
0x9
(0x1)
0xA
0x6
0x5
0x4
0x7
0xB
0xC
Number of
Frames
1
8
9
1
1
1
1
2
1
Note: Other commands are reserved and shall not be used.
When single pin programming interface bus is in high impedance state, the logical level of the bus is held by the pull up resistor R Communication .
Each communication begins by a condition of the bus level which is called START. This is done by forcing the bus in logical low level (done by
the programmer or AS5263 depending on the communication mode). Afterwards the bit information of the command is transmitted as shown in
Figure 14 .
Figure 14. Bus Timing for the WRITE128 Command
START
IDLE
DATA1
DATA0
DATA3
DATA2
DATA14
1 0 0 1
20*TBIT
Figure 15. Bus Timing for the READ128 Command
1 0 0 0
1 0 0 0
START
IDLE
DO NOT CARE
DO NOT CARE
0 1 0 1
IDLE
DATA1
DATA0
0 0 0 P
DATA3
DATA14
0 0 0 P
20*TBIT
Slave Communication Mode
www.austriamicrosystems.com/AS5263
TSW
Revision 1.4
Master Communication Mode
20 - 37
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