LS7566 View Datasheet(PDF) - LSI Corporation

Part Name

Description

MFG CO.

LS7566

24-BIT FOUR-AXES QUADRATURE COUNTER

LSI Corporation  

1 2 3 4 5 6 7 8 9 10 Next

RD

CS

RS

CHS

DB

tr1

tr10

tr2

tr3

tr4

tr5

tr6

tr7

tr8

tr9

VALID

DATA

FIGURE 2. READ CYCLE

VALID DATA

WR

CS

RS

CHS

DB

tw1

tw2

tw4

tw3

tw5

tw6

tw7

tw8

tw9

INPUT DATA

tw10

INPUT DATA

FIGURE 3. WRITE CYCLE

PCK

f f (Note 4)

(MDR0 <7> = 0)

f f (Note 4)

(MDR0 <7> = 1)

A

B

INDX

t1

t2

t3

t3

t5

t4

t4

t ih

t is

Note 1

t id

t5

t4

t4

t is

t ih

Note 2

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

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

Note 3. The index logic level in the above examples are inverted for negative index.

Note 4. fF is the internal effective filter clock.

FIGURE 4. PCK, A, B and INDX

7566-032205-9

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