DOWN

UP

DOWN

FIGURE 6. COUNT (A), DIRECTION (B) AND GATE (ABG) INPUTS IN NON-QUADRATURE MODE

COUNT DISABLE

COUNT ENABLE

DIRECTION (B)

COUNT IN (A)

GATE (ABG)

7266R1-011498-10

A

B

CNTR

RCNTR

BW

CNTR DISABLED

CNTR ENABLED

CNTR DISABLED

CNTR ENABLED

CNTR ENABLED

CNTR DISABLED

CY

LCNTR

FIGURE 7.

NON-RECYCLE, NON-QUADRATURE, BCD MODE

999998 999999

999999

0

1

2

1

0

0

N

N-1

N-2

999999

A

B

CNTR

COMP

BW

0

1

2

3

0

1

2

1

0

3

2

1

2

3

0

UP

DOWN

FIGURE 8.

MODULO - N, NON-QUADRATURE

(Shown with N = 3)

A

B

CNTR

COMP

BW

UP

DOWN

0

1

2

3

4 (CNTR FROZEN)

3

2

1

0 (CNTR FROZEN)

1

2

FIGURE 9. RANGE LIMIT, NON-QUADRATURE(Shown with PR = 4)

UP