MC68HC000EI20 Freescale Semiconductor, MC68HC000EI20 Datasheet - Page 59

• Manufacturer Part Number: MC68HC000EI20
• Description: IC MPU 16BIT 20MHZ 68-PLCC
• Manufacturer: Freescale Semiconductor

Specifications of MC68HC000EI20

• Processor Type: M680x0 32-Bit
• Speed: 20MHz
• Voltage: 3.3V, 5V
• Mounting Type: Surface Mount
• Package / Case: 68-PLCC
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Features: -

MOTOROLA
LDS/ UDS
FC2–FC0
D15–D0
A23–A1
DTACK
BGACK
CLK
R/W
AS
BR
BG
1) NEGATE BUS GRANT (BG)
1) ASSERT BUS GRANT (BG)
PROCESSOR
ACKNOWLEDGE RELEASE OF
REARBITRATE OR RESUME
GRANT BUS ARBITRATION
PROCESSOR OPERATION
BUS MASTERSHIP
PROCESSOR
Figure 5-14. 2-Wire Bus Arbitration Cycle Flowchart
Figure 5-15. 3-Wire Bus Arbitration Timing Diagram
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,
DMA DEVICE
Go to: www.freescale.com
PROCESSOR
1) ASSERT BUS REQUEST (BR)
1) NEGATE BUS REQUEST (BR)
1) EXTERNAL ARBITRATION DETER-
2) NEXT BUS MASTER WAITS FOR
MINES NEXT BUS MASTER
CURRENT CYCLE TO COMPLETE
RELEASE BUS MASTERSHIP
OPERATE AS BUS MASTER
REQUESTING DEVICE
REQUEST THE BUS
DMA DEVICE
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