Analog Devices ADuC812 Bedienungsanleitung PDF herunterladen (Seite 52)

REV. B

ADuC812

–52–

Parameter Min Typ Max Unit Figure

SPI MASTER MODE TIMING (CPHA = 1)

t

SL

SCLOCK Low Pulsewidth 330 ns 57

t

SH

SCLOCK High Pulsewidth 330 ns 57

t

DAV

Data Output Valid after SCLOCK Edge 50 ns 57

t

DSU

Data Input Setup Time before SCLOCK Edge 100 ns 57

t

DHD

Data Input Hold Time after SCLOCK Edge 100 ns 57

t

DF

Data Output Fall Time 10 25 ns 57

t

DR

Data Output Rise Time 10 25 ns 57

t

SR

SCLOCK Rise Time 10 25 ns 57

t

SF

SCLOCK Fall Time 10 25 ns 57

MOSI

SCLOCK

(CPOL=1)

SCLOCK

(CPOL=0)

t

SH

t

SL

t

SR

t

SF

BIT 6 – 1

LSB IN

t

DR

MISO

t

DAV

t

DF

t

DSU

MSB BIT 6 – 1

LSB

t

DHD

MSB IN

Figure 56. SPI Master Mode Timing (CPHA = 1)

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