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Electrical Characteristics
MC68360 USER’S MANUAL
10.11 030/QUICC BUS TYPE SLAVE MODE BUS ARBITRATION AC
ELECTRICAL SPECIFICATIONS
NOTES:
1. Specications are for asynchronous arbitration (ASTM=0).
2. Specications are for synchronous arbitration (ASTM=1).
Num.
Characteristic
3.3 V or 5.0 V
5.0V
Unit
25.0 MHz
33.34MHz
Min
Max
Min
Max
1301
CLKO1 High to BR Asserted
—
20
—
15
ns
131
CLKO1 High to BR High Impedence
—
20
—
15
ns
1321
BGACK
Low to BR High Impedence
20
—
15
—
ns
133
CLKO1 High to BGACK Asserted
—
20
—
15
ns
1342
AS
and BGACK High (the latest one) to BGACK
Low (when BG is asserted)
1.5
2.5
+ 20
1.5
2.5
+15
clks
ns
1351,2 BG Low to BGACK Low (no other Bus Master)
1.5
2.5
+ 20
1.5
2.5
+15
clks
ns
137
Clock on which BGACK Low to Clock on which AS
Low.
0
—
0
—
clks
138
CLKO1 High to BGACK High
—
20
—
15
ns
139
CLKO1 Low to BGACK High Impedance
—
15
—
11.25
ns
140
BCLRI
Low to CLKO1 High
15
—
11.25
—
ns
141
BCLRI
High to CLKO1 High
15
—
11.25
—
ns
1423
BG
Low to CLKO1 Low
15
—
11.25
—
ns
1433
AS
and BGACK High (the latest one) to BGACK
Low (when BG is asserted)
11
+ 20
11
+15
clks
ns
1441,3 BG Low to BGACK Low (no other bus master)
1
+ 20
11
+15
clks
ns
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Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
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