MC68EC030CFE25C Freescale Semiconductor, MC68EC030CFE25C Datasheet - Page 472

• Manufacturer Part Number: MC68EC030CFE25C
• Description: IC MPU 32BIT ENH 25MHZ 132-CQFP
• Manufacturer: Freescale Semiconductor

Specifications of MC68EC030CFE25C

• Processor Type: M680x0 32-Bit
• Speed: 25MHz
• Voltage: 5V
• Mounting Type: Surface Mount
• Package / Case: 132-CQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Features: -

~ N S T R U O T ~ O N
MOTOROLA
CONTROLLER
S E Q U E N C E R
EXECUTI O N
ACTIVITY
COUNT
TIME
BUS
BUS
CLK
CLK
tion stream. It shows the activity of the external bus, the bus controller, and
the sequencer.
The effect of instruction alignment on timing is illustrated b y t h e following
example. The assumptions referred to in 11.6 INSTRUCTION TIMING TABLES
apply. Both the data cache and instruction cache miss on all accesses.
The instruction stream is positioned with even alignment in 32-bit memory
as:
Figure 11-4 shows processor activity for even alignment of the given instruc-
Address
~
1
2
CALCULATE AND FETCH
13
n+8
n+12
n+4
Figure 11-4. Processor Activity - - Even A l i g n m e n t
S O U R C E EA
FOR MOVE
3
MovEi d B An Dn Dn
4
8
2.
1.
MC68030 USER'S MANUAL
LEGEND:
5
MOVE.L (d16,An,Dn),Dn
MOVE.L
CMPI.W
#(data.W)
#(data)'W,(d16,An)
;
MOVE
6
d16
M O V E
Instruction
7
~ I
(d16,An,Dn),Dn
#(data/.W,(d16,An)
8
~
CALCULATE AND FETCH
IDLE
10
EA Ext
CMPI
SOURCE EA
FOR CMPI
d 16
9
I READ FROM
I
11
CMPI.W #(data).W,(d16,An)
(d]6,An)
12
8
13
PREFETCH
n + 16
IDLE
14
15
PERFORM
CMPI
IDLE
16
11-9
11