Philips Semiconductors Programmable Logic Devices

Product specification

PLS159A

Programmable logic sequencer

(16

× 45 × 12)

October 22, 1993

35

PROGRAM TABLE

J/K

J/K or D

A

(controlled)

HIGH

H

LOW

L

0

1

2

3

0

1

2

3

4

5

6

7

(OR)

Q(N)

B(O)

POLARITY

EA

EB

F/F MODE

0

1

2

3

4

5

6

7

0

1

2

3

0

1

2

3

0

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

T

E

R

M

FC

C

AND

I

B(I)

Q(P)

PB

RB

D3

D2

D1

D0

PIN

5

4

3

2

9

8

7

6

19 18

17

16 15 14

13

12

AND

OR

CONTROL

NOTES

1. The device is shipped with all links intact. Thus a back-

ground of entries corresponding to states of virgin links

exists in the table, shown BLANK for clarity.

2. Program unused C, I, B, and Q bits in the AND array as (–).

Program unused Q, B, P, and R bits in the OR array as (–) or

(A), as applicable.

3. Unused Terms can be left blank.

4. Q (P) and Q (N) are respectively the present and next states

of flip-flops Q.

INACTIVE

O

I, B, Q

H

I, B, Q

L

DON’T CARE

–

INACTIVE

O

GENERATE

A

PROPAGATE

TRANSPARENT

–

I, B(I),

Q(P)

C

ACTIVE

A

INACTIVE

P, R, B(O)

(Q = D)

TOGGLE

O

SET

H

RESET

L

HOLD

–

(Q = J/K)

IDLE

O

CONTROL

A

ENABLE

DISABLE

–

EA, B

(POL)

F/F

MODE

LA

RA

PA

LB