MC68306FC16 Datasheet, PDF (173/191 Pages) Motorola, Inc – Integrated EC000 Processor

8.8 AC ELECTRICAL SPECIFICATIONS—CHIP SELECTS AND
INTERRUPT ACKNOWLEDGE (The electrical specifications in this document are preliminary.)
Num
Characteristic
61 Address Valid to CS≈ Asserted (Read or Write)
61A FC Valid to CS≈ Asserted (Read or Write)
62 AS V DS to CS≈
63 AS V R/ W to CS≈
64 CS≈ Width Asserted
65 CS≈ Negated to FC, Addess Invalid
66 CS≈ Negated to R/ W Invalid
67 Data-Out Valid to CS≈ Negated (Write)
68 CS≈ Negated to Data-Out Invalid (Write)
69 CS≈ Negated to Data-In High Impedance
70 CLKOUT High to IACK≈ Asserted
70A LDS High to IACK≈ Negated
V = Boolean OR
READ
S0 S1 S2 S3 S4 S5 S6
16.67 MHz
Min Max Unit
15 — ns
45 — ns
0
5 ns
0
5 ns
120 — ns
15 — ns
15 — ns
90 — ns
15 — ns
— 90 ns
0 30 ns
0
10 ns
WRITE
S12 S13 S14 S15 S16 S17 S18 (NOTE 1)
CLKOUT
65
65
FC2–FC0,
A23–A0
AS
(NOTE 1)
LDS / UDS
R/W
62
62
61 61A
63
61 61A
63
66
CS
IACKx
64
64
69
70
70A
DATA
IN
OUT
9A
12A
67
OE
9A
UW, LW
NOTE: THE WRITE CYCLE ILLUSTRATED IS PART OF A TEST AND SET INSTRUCTION.
Figure 8-5. Chip Select and Interrupt Acknowledge Timing Diagram
MOTOROLA
MC68306 USER'S MANUAL
68
12A
8-9