MC68306 Motorola, MC68306 Datasheet - Page 174

• Manufacturer Part Number: MC68306
• Description: Integrated EC000 Processor
• Manufacturer: Motorola

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