MC68EC040RC25 Freescale Semiconductor, MC68EC040RC25 Datasheet - Page 189

• Manufacturer Part Number: MC68EC040RC25
• Manufacturer: Freescale Semiconductor

Specifications of MC68EC040RC25

• Family Name: M68000
• Device Core: ColdFire
• Device Core Size: 32b
• Frequency (max): 25MHz
• Instruction Set Architecture: RISC
• Operating Temp Range: 0C to 70C
• Operating Temperature Classification: Commercial
• Mounting: Through Hole
• Pin Count: 179
• Package Type: PGA
• Lead Free Status / Rohs Status: Supplier Unconfirmed

MOTOROLA
*BG
BBI
IBR
BCLK
IBR
BBO
D
Figure 7-30. M68040 Internal Interpretation State Diagram and
BBO DRIVEN BY
THREE-STATED
OWNERSHIP,
*ENDCYCLE
MC68040,
IMPLICIT
Q
BG
BBI
*BG
BBI
BR
BB
Freescale Semiconductor, Inc.
For More Information On This Product,
IBR
*BG
BG*
TSI
External Bus Arbiter Circuit
IBR
*BG
IBR
Go to: www.freescale.com
M68040 USER’S MANUAL
TSI
*BBI
ENDCYCLE
*THREE-STATED
BBO DRIVEN BY
*THREE-STATED
BBO DRIVEN BY
MC68040,
MC68040,
SNOOP,
IDLE,
IBR
BBI
TSI
ENDCYCLE
*
BG
BBI
TSI
*BG
= Internal bus request signal (see schematic below).
= Bus busy driven by alternate bus master.
= Transfer start as an input, sampled by the MC68040.
= Whatever terminates a bus transaction
= The 040 may or may not transition if an active bus
= Indicates the signal is asserted for that device.
*BG
whether it is normal, bus error, or retried. Note
that false burst cycles are treated as a line
transaction. False locked transactions
are treated the same as any other bus cycle.
cycle is terminated with a bus error, and BG is
asserted.
*TSI
*IBR
*ENDCYCLE
BBI
TSI
BG
*BBO DRIVEN BY
PROTOCOL
VIOLATION
THREE-STATED
TIP
OWN/PARK,
BBI
MC68040,
BG
*BG
*ENDCYCLE
*IBR
BG
ENDCYCLE
*BG
*TIP
TIP*
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