ls7266r1 LSI Computer Systems, Inc., ls7266r1 Datasheet - Page 9

• Manufacturer Part Number: ls7266r1
• Description: 24-bit Dual-axis Quadrature Counter
• Manufacturer: LSI Computer Systems, Inc.

7266R1-100704-9
FCK
(Note 4)
WR
C/D
X/Y
DB
CS
C/D
FCK
X/Y
RD
CS
DB
A
B
n
Note 4: FCK
t
3
t
4
t
1
n
is the final modulo-n internal filter clock, arbitrarily shown here as modulo-1.
FIGURE 3. FILTER CLOCK FCK AND QUADRATURE CLOCKS A AND B
tr
tr
tw
1
8
tr
tw
1
2
INPUT DATA
t
tr
tr
tw
5
tw
tw
2
4
6
6
4
8
FIGURE 1. READ CYCLE
VALID
DATA
tw
tw
tw
tr
FIGURE 2. WRITE CYCLE
5
7
9
9
tr
tr
t
5
7
2
tw
tr
t
3
3
4
tr
10
t
tw
5
10
t
4
VALID DATA
INPUT DATA
t4