LS7366R データシートの表示（PDF） - LSI Corporation

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LS7366R

32-BIT QUADRATURE COUNTER WITH SERIAL INTERFACE

LSI Corporation  

tCSL

SS/

START OF NEW COMMAND

tCH

tCL

SCK

MOSI

BIT #

WR MDR1

DATA

RD

X X X D7 D6 D5 D4 D3 D2 D1 D0 X

7 6 5 4 3 2 1 0 7 6 54 3 2 1 0

76

MDR1

X X X RANDOM DATA

54 3 2 1 0

MISO

BIT #

NOTE: Write to MDR1 followed by Read from MDR1 operation

FIGURE 3. WR MDR1 - RD MDR1

D7 D6 D5 D4 D3 D2 D1 D0

7 6 5 4 3 21 0

TRI-STATE

tC S I

SS/

SCK

MOSI

BIT #

MISO

BIT #

RD

76

CNTR

X

5 4 32

XX

RANDOM DATA

10

BYTE 1

BYTE 0

D7 D6 D5 D4 D3 D2 D1 D0 D7 D6 D5 D4 D3 D2 D1 D0

7 6 5 4 3 2 1 0 7 6 5 4 3 210

TRI-STATE

CLR STR

X XX

7 6 5 4 3 21 0

NOTE: Read CNTR (in 2-byte configuration) followed by CLR STR operation.

FIGURE 4. RD CNTR - CLR STR

f CKi

f f (Note 4)

(MDR0 <7> = 0)

f f (Note 4)

(MDR0 <7> = 1)

A

B

INDEX/

t1

t2

t3

t4

ti s

t3

t5

t4

tih

Note 1

tid

t5

t4

t4

ti s

tih

Note 2

Note 1. Synchronous index coincident with both A and B high.

Note 2. Synchronous index coincident with both A and B low..

Note 3. fF is the internal effective filter clock.

FIGURE 5. fCKI, A, B and INDEX

7366R-041906-8

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