MC68HC000RC8 Freescale Semiconductor, MC68HC000RC8 Datasheet - Page 40
MC68HC000RC8
Manufacturer Part Number
MC68HC000RC8
Description
IC MPU 32BIT 8MHZ 68-PGA
Manufacturer
Freescale Semiconductor
Datasheet
1.MC68HC000IEI16.pdf
(189 pages)
Specifications of MC68HC000RC8
Processor Type
M680x0 32-Bit
Speed
8MHz
Voltage
3.3V, 5V
Mounting Type
Surface Mount
Package / Case
68-PGA
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Features
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4-2
FC2–FC0
(DS)
A23–A0
DTACK
D7–D0
R/W
CLK
LDS
AS
1) SET R/W TO READ
2) PLACE FUNCTION CODE ON FC2–FC0
3) PLACE ADDRESS ON A23-A0
4) ASSERT ADDRESS STROBE (AS)
5) ASSERT LOWER DATA STROBE (LDS)
1) LATCH DATA
2) NEGATE LDS (DS FOR MC68008)
3) NEGATE AS
(DS ON MC68008)
S0 S1 S2 S3 S4 S5 S6 S7 S0 S1 S2 S3 S4 S5 S6 S7 S0 S1 S2 S3 S4 w
ADDRESS THE DEVICE
ACQUIRE THE DATA
START NEXT CYCLE
BUS MASTER
M68000 8-/16-/32-BIT MICROPROCESSORS USER'S MANUAL
Figure 4-2. Read and Write-Cycle Timing Diagram
READ
Figure 4-1. Byte Read-Cycle Flowchart
Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
WRITE
1) DECODE ADDRESS
2) PLACE DATA ON D7–D0
3) ASSERT DATA TRANSFER
1) REMOVE DATA FROM D7–D0
2) NEGATE DTACK
ACKNOWLEDGE (DTACK)
TERMINATE THE CYCLE
INPUT THE DATA
2 WAIT STATE READ
SLAVE
w w w S5 S6 S7
MOTOROLA
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