as5050 austriamicrosystems, as5050 Datasheet - Page 15

• Manufacturer Part Number: as5050
• Description: Low Power 10-bit Magnetic Rotary Encoder
• Manufacturer: austriamicrosystems

AS5050
Datasheet - A p p l i c a t i o n I n f o r m a t i o n
Figure 11. SPI Command / Response Data Flow
8.1.2 SPI Timing
Figure 12. SPI Timing Diagram
Table 15. SPI Timing Characteristics
1. No synchronization needed because the internal clock is inactive
2. Synchronization with the internal clock → 2 * t
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Parameter
t
t
t
t
t
t
t
SCKH
SCKL
XSSH
XSSH
MOSI
MISO
SCK
t
t
t
MOSI
MISO
L
L
H
MSB
MSB
( Output )
Transmission 1
( Input )
( Input )
( Input )
MISO
MOSI
SCK
SS /
Command 1
0x 00
Time between last falling edge of SCK and rising edge of SS/
Time between SS/ falling edge and SCK rising edge
Time between SS/ falling edge and SCK rising edge
t
MISO
LSB
LSB
t
High time of SS/ between two transmissions
High time of SS/ between two transmissions
L
t
MOSI
data[ 15]
SCK edge to data output valid
Data input valid to clock edge
High period of serial clock
Low period of serial clock
t
data[ 15]
sck
MSB
MSB
Serial clock period
CLK_SYS
Transmission 2
Description
Command 2
Response 1
t
+ 10 ns (e.g. at 8 MHz → 253 ns)
sckL
data[ 14]
data[ 14]
LSB
LSB
t
sckH
Revision 1.12
MSB
MSB
Transmission N - 1
Command N - 1
Response 2
T
COM
LSB
LSB
t
SCK
350
350
Min
10
100
10
50
50
20
1
1
/ 2
2
2
data[0]
data[0]
MSB
MSB
t
H
Transmission N
Response N - 1
Command N
t
XSSH
Max
t
t
20
OZ
OZ
LSB
LSB
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
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