MC68030FE20C Freescale Semiconductor, MC68030FE20C Datasheet - Page 558

• Manufacturer Part Number: MC68030FE20C
• Description: IC MPU 32BIT ENHANCED 132-CQFP
• Manufacturer: Freescale Semiconductor

Specifications of MC68030FE20C

• Processor Type: M680x0 32-Bit
• Speed: 20MHz
• Voltage: 5V
• Mounting Type: Surface Mount
• Package / Case: 132-CQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Features: -

MOTOROLA
from occurring from those cycles that access operands that are noncachable
Normally, as soon as AS is asserted, circuit (C) immediately asserts the
STERM signal to terminate the bus cycle, assuming that the cache will pro-
duce
or had missed in the cache on the previous cycle (and have not already been
retried). In this example, (C) prevents early termination of all CPU space
accesses, all write cycles (assuming a writethrough cache is implemented),
rviC68030
~ O U T
Q
SIZO-SIZ1
a valid hit later in the cycle. Circuit (C) also prevents the early termination
FCO-FC2
AO-A31
DO-D31
BGACK
CBACK
STERM
CBREQ
Figure 12-17. Example MC68030 Hardware Configuration with
CLOUT
RESET
8ERR
NAN
a M
RMC
~
CIIN
CLK
E~
CAI H EHT
t
TVLOW I
STERM
MC68030 USER'S MANUAL
•
External Physical Cache
i
I
i
b
i
TAG STORE,
COMPARE,
CONTROL
j
!
I
AND
;
I)
I'
II
#
!
OUTPUT
,
1
I
1
I/0 DEVICES.
BUFFERING
CONTROl-,
AND
12-33