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AS5147 Scheda tecnica(PDF) 12 Page - ams AG

Il numero della parte AS5147
Spiegazioni elettronici  14-Bit On-Axis Magnetic Rotary Position Sensor
PDF  35 Pages
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Produttore elettronici  AMSCO [ams AG]
Homepage  http://www.ams.com
Logo AMSCO - ams AG

AS5147 Scheda tecnica(HTML) 12 Page - ams AG

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AS5147 – 12
ams Datasheet: 2014-Jun-27 [v1-04]
De tail ed De sc rip t ion
To increase the reliability of communication over the SPI, an
even parity bit (PARC) must be generated and sent. A wrong
setting of the parity bit causes the PARERR bit in the error flag
register to be set. The parity bit is calculated from the 16-bit
command frame. The 16-bit command specifies whether the
transaction is a read or a write and the address. Figure 15 shows
the read data frame.
Figure 15:
SPI Read Data Frame
The data is sent on the MISO pin. The parity bit PARD is
calculated by the AS5147 for the 16-bit data frame. If an error
is detected in the previous SPI command frame, the EF bit is set
high. The SPI read is sampled on the rising edge of CSn and the
data is transmitted on MISO with the next read command, as
shown in Figure 16.
Figure 16:
SPI Read
Bit
Name
Description
15
PARD
Parity bit (even) for the data frame
14
EF
0: No command frame error command occurred
1: Error occurred
13:0
DATA
Data
Read ADD[n]
Read ADD[k]
CSn
Read ADD[p]
Data ADD[n]
Data ADD[p]
Read ADD[m]
Data ADD[k]
Command
Command
Command
Command
Data
Data
Data
MOSI
MISO



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