MC68030RC20C Freescale Semiconductor, MC68030RC20C Datasheet - Page 193
MC68030RC20C
Manufacturer Part Number
MC68030RC20C
Description
IC MPU 32BIT ENHANCED 128-PGA
Manufacturer
Freescale Semiconductor
Specifications of MC68030RC20C
Processor Type
M680x0 32-Bit
Speed
20MHz
Voltage
5V
Mounting Type
Surface Mount
Package / Case
128-PGA
Family Name
M68000
Device Core
ColdFire
Device Core Size
32b
Frequency (max)
20MHz
Instruction Set Architecture
RISC
Supply Voltage 1 (typ)
5V
Operating Supply Voltage (max)
5.25V
Operating Supply Voltage (min)
4.75V
Operating Temp Range
0C to 70C
Operating Temperature Classification
Commercial
Mounting
Through Hole
Pin Count
128
Package Type
PGA
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Features
-
Lead Free Status / Rohs Status
Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
MC68030RC20C-1F91C
Manufacturer:
ON/安森美
Quantity:
20 000
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7
7-32
4) DRIVE FUNCTION CODE ON FCO-FC2
2) SET R/WTO READ
3) DRIVE ADDRESS ON AO-A31
4) DRIVE FUNCTION CODE ON FCO-FC2
5) DRIVE SIZE (SIZO-SIZ1) (FOUR BYTES)
6) CACHE INHIBIT OUT (CLOUT) BECOMES VALID
7) ASSERT ADDRESS STROBE ( ~ )
8) ASSERT DATA STROBE (O'S)
9) ASSERT DATA BUFFER ENABLE (DBEN)
2) LATCH DATA
31 NEGATE AS AND DS
4) NEGATE DBEN
2) SET R/WTO READ
3) DRIVE ADDRESS ON AO-A3"
5) DRIVE SIZE fSIZO-SlZll lONE BYTE)
6) CACHE INHIBIT OUT (CLOUT1 BECOMES VAUD
7) ASSERT ADDRESS STROBE IA'S~
81 ASSERT DATA STROBE (D'S)
9) ASSERT DATA BUFFER ENABLE (DBEN)
2t LATCH DATA
31 NEGATE AS AND OS
4~ NEGATE DBEN
1) ASSERT ECS/OCS FOR ONE-HALF CLOCK
1) SAMPLE CACHE INHIBIT IN (CIIN)
II ASSERT ECS/OCS FOR ONE-HALF CLOCK
1 SAMPLE CACHE INHIBIT IN (CIIN)
Figure 7-19. Asynchronous Long-Word Read Cycle Flowchart
Figure 7-20. Asynchronous Byte Read Cycle Flowchart
START NEXT CYCLE
START NEXT CYCLE
ADDRESS DEVICE
ADDRESS DEVICE
ACQU RE DATA
ACQUIRE DATA
PROCESSOR
PROCESSOR
MC68030 USER'S MANUAL
L
1
2) PLACE DATA ON DO-D31
3) ASSERT DATA TRANSFER AND SIZE ACKNOWLEDGE (DSACKx)
1) DECODE ADDRESS
1) REMOVE DATA FROM DO-D31
2) NEGATE DSACKx
2) PLACE DATA ON D31-D24 OR
3) ASSERT DATA TRANSFER AND SIZE ACKNOWLEDGE (DSACKx)
1) DECODE ADDRESS
1) REMOVE DATA FROM DATA BUS
2) NEGATE DSACKx
(BASED ON AO, A].CACHE, AND BUS WIDTH)
D23-D16 OR
D15-D8 DR
D7-DO
EXTERNAL DEVICE
TERMINATE CYCLE
TERMINATE CYCLE
EXTERNAL DEVICE
PRESENT DATA
PRESENT DATA
MOTOROLA
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