8.9 AC ELECTRICAL SPECIFICATIONS—BUS ARBITRATION
specifications in this document are preliminary. See Figures 8-6–8-7)
Num
7
CLKOUT High to Address, Data Bus High Impedance (Maximum)
16
CLKOUT High to Control Bus High Impedance
33
CLKOUT High to BG Asserted
34
CLKOUT High to BG Negated
35
BR Asserted to BG Asserted
36
BR Negated to BG Negated
37
BGACK Asserted to BG Negated
37A 2 BGACK Asserted to BR Negated
38
BG Asserted to Control, Address, Data Bus High Impedance (AS Negated)
39
BG Width Negated
47
Asynchronous Input Setup Time
57
BGACK Negated to Bus Driven
58
BR Negated to Bus Driven
CLK
47
BR
35
BG
39
AS
DS
R/W
FC2–FC0
A19–A0
D7–D0
8-10
Characteristic
33
38
16
7
Figure 8-6. Bus Arbitration Timing Diagram
MC68306 USER'S MANUAL
(The electrical
16.67 MHz
Min
Max
Unit
—
50
ns
—
50
ns
—
40
ns
—
40
ns
1.5
6.5
Clks
1.5
3.5
Clks
1.5
3.5
Clks
20 ns
1.5
Clks
—
50
ns
1.5
—
Clks
10
—
ns
1
—
Clks
1
—
Clks
47
36
58
MOTOROLA
34