MA800 – 8-BIT, DIGITAL ANGLE SENSOR

MA800 Rev. 1.02

www.MonolithicPower.com

11

6/15/2018

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Figure 7: SPI Timing Diagram

Figure 8: Minimum Idle Time

Table 3: SPI Timing

Parameter

(6)

Description

Min

Max

Unit

tidleAngle

Idle time between two subsequent angle transmissions

150

ns

tidleReg

Idle time before and after a register readout

750

ns

tnvm

Idle time between a write command and a register readout

(delay necessary for non-volatile memory update)

20

ms

tcsL

Time between CS falling edge and SCLK falling edge

80

ns

tsclk

SCLK period

40

ns

tsclkL

Low level of SCLK signal

20

ns

tsclkH

High level of SCLK signal

20

ns

tcsH

Time between SCLK rising edge and CS rising edge

25

ns

tMISO

SCLK setting edge to data output valid

15

ns

tMOSI

Data input valid to SCLK reading edge

15

ns

NOTE:

6) All values are guaranteed by design.

X

hi-Z

MSB

MSB

LSB

hi-Z

CS

SCLK

MOSI

MISO

LSB

t

idleAngle

t

idleReg

t

nvm

t

csL

t

sclk

t

MISO

t

MOSI

t

sclkL

t

sclkH

t

csH

t

MISO

t

MISO

MSB

MSB

X

CS

MISO

MOSI

t

idleAngle

Angle

Angle

Angle

Reg Value

Read Reg Cmd

t

idleReg

t

nvm

Angle

Angle

Angle

Write Reg Cmd

0

0

0

0

0

Reg Value

0

t

idleReg

Angle

t

idleReg

0

t

idleAngle

t

idleAngle

t

idleAngle