MC68030RC16C Freescale Semiconductor, MC68030RC16C Datasheet - Page 199
MC68030RC16C
Manufacturer Part Number
MC68030RC16C
Description
IC MPU 32BIT ENHANCED 128-PGA
Manufacturer
Freescale Semiconductor
Datasheet
1.MC68030FE20C.pdf
(599 pages)
Specifications of MC68030RC16C
Processor Type
M680x0 32-Bit
Speed
166MHz
Voltage
5V
Mounting Type
Surface Mount
Package / Case
128-PGA
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Features
-
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7 ¸¸
'co-'~' D(
7-38
°sAc,,
o s A c , 0 ~ \
A,.~--_X
oo.o,,
O , E - - ~ ~
.,~ __/
SlZ1 =--'~
si z e
°c~-k__/
~ - ' k _ /
CLK
A,-- k
A0-~
State 0
SO
Figure 7-25. Asynchronous Read-Write-Read C y c l e s - 32-Bit Port
The write cycle starts in SO. The processor drives ECS low, indicating the
of a write operation, OCS is driven low at the same time. During SO, the
beginning of an external cycle. When the cycle is the first external cycle
processor places a valid address on A0-A31 and valid function codes on
FC0-FC2. The function codes select the address space for the cycle. The
processor drives R/W low for a write cycle. SIZ0-SIZ1 become valid, in-
dicating the number of bytes to be transferred. CLOUT also becomes valid,
or in the appropriate TTx register.
indicating the state of the MMU CI bit in the address translation descriptor
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LON6 WORD
S2
REA0
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x
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k__/
~
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~
S0
k__/
$2
WRITE
MC68030 USER'S MANUAL
$4
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~
x
k_/
k_/
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>.-.--<
SO
/ ~
$2
WRITE
$4
X
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X
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READ WITH WAIT STATES -
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