AS5263
Datasheet - A p p l i c a t i o n I n f o r m a t i o n
8.1.9
PASS2FUNC
Figure 23 shows the format of the frame.
Figure 23. Frame Organization of the PASS2FUNCTION Command
DO NOT CARE
DO NOT CARE
CMD
LSB
MSB
LSB
MSB
LSB
1
1
1
MSB
0
The command consists of one frame received by the AS5263 (slave communication mode). This command stops the communication receiving
mode, releases the reset of the DSP of the AS5263 device and starts to work in functional mode with the values of the SFR currently written.
The access is performed with CMD field set to 0x7.
8.1.10 READ
Figure 24 shows the format of the frame.
Figure 24. Frame Organization of the READ Command
ADDR2
ADDR1
CMD
LSB
MSB
LSB
MSB
LSB
1
1
0
MSB
1
DATA2
DATA1
CMD DUMMY
LSB
MSB
LSB
MSB
0
0
0
P
The command is composed by a first frame sent to the AS5263. The device is in slave communication mode. The device remains for the time
T SWITCH in IDLE mode before changing into the master communication mode. The AS5263 starts to send the second frame transmitted by the
AS5263.
The access is performed with CMD field set to 0xB.
When the AS5263 receives the first frame, it sends a frame with data value of the address specified in the field of the first frame.
Table 17 shows the possible readable data information for the AS5263 device.
An even parity bit is used to guarantee a correct data transmission. The parity bit (P) is generated by the 16 data bits. The MSB of the CMD
dummy (P) is reserved for the parity information.
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