AS5013 View Datasheet(PDF) - austriamicrosystems AG
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AS5013 Datasheet PDF : 32 Pages
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AS5013
Datasheet - Detailed Description
7.5 I²C Interface
The AS5013 supports the 2-wire high-speed I²C protocol in device mode, according to the NXP specification UM10204.
The host MCU (master) has to initiate the data transfers. The 7-bit device address of the AS5013 depends on the state at the pin ADDR.
ADDR = 0 → Slave address =‘1000 000’ (40h)
ADDR = 1 → Slave address =‘1000 001’ (41h)
For other I²C addresses, please contact ams.
Supported modes (slave mode):
Random/Sequential Read
Byte/Page Write
Standard Mode: 0 to 100kHz clock frequency
Fast Mode: 0 to 400kHz clock frequency
High Speed: 0 to 3.4MHz clock frequency
The SDA signal is bidirectional and is used to read and write the serial data. The SCL signal is the clock generated by the host MCU, to
synchronize the SDA data in read and write mode. The maximum I²C clock frequency is 3.4MHz, data are triggered on the rising edge of SCL.
7.5.1 Interface Operation
Figure 8. I²C Timing Diagram for FS-mode
SDA
SCL
tBUF
tLOW
tR
Stop
Start
tHD.STA
tHD.DAT
tF
tHIGH
Figure 9. Timing Diagram for HS-mode
tHD.STA
tSU.DAT
tSU.STA
Repeated
Start
tSU.STO
www.ams.com/AS5013
Revision 1.11
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