MC68HC000EI8R2 Freescale Semiconductor, MC68HC000EI8R2 Datasheet - Page 58
MC68HC000EI8R2
Manufacturer Part Number
MC68HC000EI8R2
Description
IC MPU 16BIT 8MHZ 68-PLCC
Manufacturer
Freescale Semiconductor
Datasheet
1.MC68HC000IEI16.pdf
(189 pages)
Specifications of MC68HC000EI8R2
Processor Type
M680x0 32-Bit
Speed
8MHz
Voltage
3.3V, 5V
Mounting Type
Surface Mount
Package / Case
68-PLCC
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Features
-
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1) NEGATE BG (AND WAIT FOR BGACK
1) ASSERT BUS GRANT (BG)
TO BE NEGATED)
TERMINATE ARBITRATION
REARBITRATE OR RESUME
GRANT BUS ARBITRATION
PROCESSOR OPERATION
PROCESSOR
Figure 5-13. 3-Wire Bus Arbitration Cycle Flowchart
M68000 8-/16-/32-BIT MICROPROCESSORS USER'S MANUAL
(Not Applicable to 48-Pin MC68008 or MC68EC000)
Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
1) PERFORM DATA TRANSFERS (READ
1) EXTERNAL ARBITRATION DETER-
2) NEXT BUS MASTER WAITS FOR
3) NEXT BUS MASTER ASSERTS BUS
4) BUS MASTER NEGATES BR
1) ASSERT BUS REQUEST (BR)
1) NEGATE BGACK
ACKNOWLEDGE BUS MASTERSHIP
AND WRITE CYCLES) ACCORDING
TO THE SAME RULES THE PRO-
CESSOR USES
MINES NEXT BUS MASTER
CURRENT CYCLE TO COMPLETE
GRANT ACKNOWLEDGE (BGACK)
TO BECOME NEW MASTER
OPERATE AS BUS MASTER
RELEASE BUS MASTERSHIP
REQUESTING DEVICE
REQUEST THE BUS
MOTOROLA
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