AMS AS5147P, Operation Manual, Page: 7 / 13

AS5147P Adapter Board
ams Eval Kit Manual, Confidential Page 7
[v1-0] 2015-Jan-14 Document Feedback
4 Operation case
4.1 One device SPI mode, unidirectional
– 3 wire
The AS5147P adapter board can be directly connected to an industry standard SPI port of a
microcontroller. The minimum connection requirements for unidirectional communication between
the microcontroller and the AS5147P are MISO, CLK, CSn. In this case the MOSI pin is tied to VDD
which will result in reading only the 14-bit Angle Register (0x3FFF). See AS5147P datasheet
register table, register 0x3FFF.
Figure 5: One device SPI mode, unidirectional
– 3 wire
MOSI
AS5147P
MISO GND CLK CSn NC 3V3 5V
W/PWM V U NC TEST I/PWM A B
5V/3V3
Regulated
Power Supply
3-3.6V
GND
M
IS
O
M
O
SI
SC
K
SS
/
G
N
D
V
D
D
MCU