mcf5307cft90b Freescale Semiconductor, Inc, mcf5307cft90b Datasheet - Page 420

• Manufacturer Part Number: mcf5307cft90b
• Description: Mcf5307 Coldfire Integrated Microprocessor User
• Manufacturer: Freescale Semiconductor, Inc

General Operation of External Master Transfers
Table 18-11 lists conditions that cause state transitions.
18-32
Current
Implicit
master
Reset
State
Table 18-11. Three-Wire Bus Arbitration Protocol Transition Conditions
Figure 18-32. Three-Wire Bus Arbitration Protocol State Diagram
Condition
Label
A1
A2
A3
A4
B1
B2
B3
B4
D1
Asserted
Negated
Negated
Negated
Negated
Negated
Negated
Negated
RSTI
Freescale Semiconductor, Inc.
External
Master
For More Information On This Product,
C3
C5
A3
Watchdog
Software
Asserted
Negated
Negated
Negated
Negated
Negated
Negated
Reset
Go to: www.freescale.com
—
MCF5307 User’s Manual
D2
D4
Asserted
Asserted
Asserted
Asserted
Negated
Negated
Explicit
Master
Reset
BG
—
—
B1
D3
A1
A2
C1
C2
C4
Asserted
Request
Negated
Bus
—
—
—
—
—
—
B2
B4
A4
Implicit
Master
Progress
Transfer
—
—
—
—
—
—
—
—
in
B3
Cycle
End of
—
—
—
—
—
—
—
—
1
Next State
External
Implicit
Explicit
Implicit
Explicit
master
master
master
master
master
device
Reset
Reset
EM