MC68EC040RC25 Freescale Semiconductor, MC68EC040RC25 Datasheet - Page 160

• 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

7-18
UNTIL THREE LONG WORDS
TRANSFERRED
1) SET R/W TO READ
2) DRIVE ADDRESS ON A31–A0
3) DRIVE USER PAGE ATTRIBUTES ON UPA1, UPA0
4) DRIVE SIZE ON SIZ1, SIZ0 (LINE)
5) DRIVE TRANSFER TYPE ON TT1, TT0
6) DRIVE TRANSFER MODIFIER ON TM2–TM0
7) CIOUT BECOMES VALID
8) ASSERT TS FOR ONE CLOCK
9) ASSERT TIP
1) LATCH DATA
2) SAMPLE TBI AND TCI
3) RECOGNIZE TBI ASSERTED
1) INCREMENT ADDRESS BITS A3, A2 AND DRIVE
2) DRIVE SIZE ON SIZ1, SIZ0 (LONG WORD)
3) ASSERT TRANSFER START (TS) FOR ONE CLOCK
1) LATCH DATA
1) NEGATE TIP (IF REQUIRED)
Figure 7-12. Burst-Inhibited Line Read Transfer Flowchart
NEW ADDRESS ON A31–A0
WHEN THREE LONG WORDS
END OF LINE TRANSFER
START NEXT CYCLE
ADDRESS DEVICE
ADDRESS DEVICE
ACQUIRE DATA
ACQUIRE DATA
TRANSFERRED
PROCESSOR
Freescale Semiconductor, Inc.
For More Information On This Product,
M68040 USER’S MANUAL
Go to: www.freescale.com
1) DECODE ADDRESS
2) PLACE DATA ON D31–D0
3) ASSERT TA AND TBI
1) REMOVE DATA FROM D31–D0
2) NEGATE TA
1) DECODE ADDRESS
2) PLACE DATA ON D31–D0
3) ASSERT TA
1) REMOVE DATA FROM D31–D0
2) NEGATE TA
TERMINATE CYCLE
TERMINATE CYCLE
EXTERNAL DEVICE
PRESENT DATA
PRESENT DATA
MOTOROLA