LS7266R1 データシートの表示（PDF） - LSI Corporation
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LS7266R1 Datasheet PDF : 14 Pages
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DOWN
UP
DOWN
DIRECTION (B)
t8S
t8H
COUNT IN (A)
tGS
tGH
GATE (ABG)
COUNT DISABLE
COUNT ENABLE
FIGURE 6. COUNT (A), DIRECTION (B) AND GATE (ABG) INPUTS IN NON-QUADRATURE MODE
A
B
CY
BW
CNTR
RCNTR
LCNTR
t9
CNTR DISABLED
t9
999998 999999
0
CNTR DISABLED
1
2
1
0
999999
CNTR ENABLED
CNTR ENABLED
t10
CNTR DISABLED
0
999999
N N-1 N-2
t11
CNTR ENABLED
t11
FIGURE 7. NON-RECYCLE, NON-QUADRATURE, BCD MODE
A
B
UP
DOWN
CNTR 0 1
2
3
0
1
2
1
0
3
2
1
0
32
t12
COMP
BW
FIGURE 8. MODULO - N, NON-QUADRATURE (Shown with N = 3)
A
B
UP
DOWN
CNTR 0 1
2
3
4 (CNTR FROZEN) 3
2
1
COMP
BW
0 (CNTR FROZEN)
UP
12
7266R1-011498-10
FIGURE 9. RANGE LIMIT, NON-QUADRATURE(Shown with PR = 4)
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