Analog-devices ADuC812 Manuel d'utilisateur télécharger pdf (Page 55)

REV. B

ADuC812

–55–

Parameter Min Typ Max Unit Figure

SPI SLAVE MODE TIMING (CPHA = 0)

t

SS

SS to SCLOCK Edge 0 ns 60

t

SL

SCLOCK Low Pulsewidth 330 ns 60

t

SH

SCLOCK High Pulsewidth 330 ns 60

t

DAV

Data Output Valid after SCLOCK Edge 50 ns 60

t

DSU

Data Input Setup Time before SCLOCK Edge 100 ns 60

t

DHD

Data Input Hold Time after SCLOCK Edge 100 ns 60

t

DF

Data Output Fall Time 10 25 ns 60

t

DR

Data Output Rise Time 10 25 ns 60

t

SR

SCLOCK Rise Time 10 25 ns 60

t

SF

SCLOCK Fall Time 10 25 ns 60

t

DOSS

Data Output Valid after SS Edge 20 ns 60

t

SFS

SS High after SCLOCK Edge ns 60

t

DAV

t

SFS

MISO

MOSI

SCLOCK

(CPOL=1)

SCLOCK

(CPOL=0)

t

SH

t

SL

t

SR

t

DF

t

DR

t

DSU

t

DHD

t

SS

SS

t

DOSS

MSB BIT 6 – 1 LSB

BIT 6 – 1

LSB IN

MSB IN

t

SF

Figure 59. SPI Slave Mode Timing (CPHA = 0)

1 2 ... 50 51 52 53 54 55 56

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