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Revision 1.16

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AS5055

Datasheet - Application In form atio n

The data are sent and read with MSB first. Every time the chip is accessed it is sending and receiving data.

Figure 11. SPI Command / Response Data Flow

8.1.2 SPI Timing

Figure 12. SPI Timing Diagram

Table 16. SPI Timing Characteristics

Parameter

Description

Min

Max

Unit

Time between positive edge of SS/ to output high impedance

50

ns

Time between SS/ falling edge and SCK rising edge

10

ns

Serial clock period

100

ns

Low period of serial clock

50

ns

High period of serial clock

50

ns

Time between last falling edge of SCK and rising edge of SS/

ns

Command 1

Command 2

Command N - 1

Command N

MOSI

MSBLSB

MSBLSB

MSBLSB

MSBLSB

0x00

Response 1

Response 2

Response N - 1

MISO

MSBLSB

MSBLSB

MSBLSB

MSBLSB

Transmission 1

Transmission 2

Transmission N - 1

Transmission N

SS /

( Input )

SCK

( Input )

MOSI

( Input )

MISO

( Output )

data[ 15]

data[ 15]

data[ 14]

data[ 14]

data[0]

data[0]