AS5134 PB austriamicrosystems, AS5134 PB Datasheet - Page 11

• Manufacturer Part Number: AS5134 PB
• Description: BOARD PROGRAM AS5134
• Manufacturer: austriamicrosystems

Specifications of AS5134 PB

• Module/board Type: ZIF Socket
• For Use With/related Products: AS5000 Programmer, AS5134
• Lead Free Status / RoHS Status: Lead free by exemption / RoHS compliant by exemption

AS5134
Data Sheet - D e t a i l e d D e s c r i p t i o n
7.3 Serial 3-Wire Read-only Connection
This connection is possible when the AS5134 is only used to provide the angular data (no power down or OTP access). The Chip Select (CS)
and Clock (DCLK) connection is the same as in the R/W mode, but only a digital input pin (not an I/O pin) is required for the DIO connection. As
the first 5 bits of the data transmission are command bits sent to the AS5134, both the microcontroller and the AS5134 are configured as digital
inputs during this phase. Therefore, a pull-down resistor must be added to make sure that the AS5134 reads “00000” as the first 5 bits, which
sets the Read_Angle command.
Note: All further application examples are shown in R/W mode, however read-only mode is also possible unless otherwise noted.
Figure 5. SSI Read-only Serial Data Transmission
Table 6. 2-or 3-wire Read-only Serial Bit Sequence (21bit read)
www.austriamicrosystems.com/AS5134
C4
0
DCLK
C3
0
DIO
DIO
CS
Command
C2
0
C1
0
t1
C0
1
0
VSS
VDD
+5V
D15 D14 D13 D12 D11 D10
lock
command phase
2
VDD
VSS
3
Output
Output
Input
4
AGC
10k…
100k
Revision 1.13
5
D15
6
D9
CS
DCLK
DIO
D14
Read Data
D8
data phase
7
VDD
C2
D7
D13
VSS
8
D6
D12
100nF
D5
D1
20
Angle
D4
D0
t9
21
t10
D3
D2
DIO read
DIO write
D1
11 - 40
D0