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MC68HC000RC12 Datasheet, PDF (65/189 Pages) Freescale Semiconductor, Inc – 8-/16-/32-Bit Microprocessors User’s Manual | |||
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Freescale Semiconductor, Inc.
BUS RELEASED FROM THREE STATE AND PROCESSOR STARTS NEXT BUS CYCLE
BGACK NEGATED
BG ASSERTED AND BUS THREE STATED
BR VALID INTERNAL
BR SAMPLED
BR ASSERTED
CLK
S0 S1 S2 S3 S4 S5 S6 S7
BR
BG
BGACK
FC2âFC0
A23âA1
AS
UDS
LDS
R/W
DTACK
D15âD0
PROCESSOR
BUS
INACTIVE
ALTERNATE BUS MASTER
S0 S1 S2 S3 S4
PROCESSOR
Figure 5-20. 3-Wire Bus Arbitration Timing DiagramâBus Inactive
MOTOROLA
M68000 8-/16-/32-BIT MICROPROCESSORS USER'S MANUAL
5-19
For More Information On This Product,
Go to: www.freescale.com
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