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Revision 1.12

15 - 22

AS5050

Datasheet - Application In form atio n

Figure 11. SPI Command / Response Data Flow

8.1.2 SPI Timing

Figure 12. SPI Timing Diagram

Table 15. SPI Timing Characteristics

Parameter

Description

Min

Max

Unit

Time between SS/ falling edge and SCK rising edge

10

1

ns

Time between SS/ falling edge and SCK rising edge

350

2

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

High time of SS/ between two transmissions

10

1

1. No synchronization needed because the internal clock is inactive

ns

High time of SS/ between two transmissions

350

2

2. Synchronization with the internal clock

ns

Data input valid to clock edge

20

ns

SCK edge to data output valid

20

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]