MC68030CRC25C Freescale Semiconductor, MC68030CRC25C Datasheet - Page 135
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MC68030CRC25C
Manufacturer Part Number
MC68030CRC25C
Description
IC MPU 32BIT ENHANCED 128-PGA
Manufacturer
Freescale Semiconductor
Datasheet
1.MC68030FE20C.pdf
(599 pages)
Specifications of MC68030CRC25C
Processor Type
M680x0 32-Bit
Speed
25MHz
Voltage
5V
Mounting Type
Surface Mount
Package / Case
128-PGA
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Features
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5
5.11 EMULATOR SUPPORT SIGNALS
5.11,1 Cache Disable (CDIS)
5.11.2 M M U Disable (MMUDIS)
5.11,3 Pipeline Refill
5.11.4 Internal Microsequencer Status
5-10
for a description of the use of this signal by an emulator. The assertion of
APPLICATIONS INFORMATION for more detailed information on emulation
The cache disable signal dynamically disables the on-chip caches to assist
TIONS INFORMATION for a description of the use of this signalby an emulator.
and become available again when CDIS is negated.
The MMU disable signal dynamically disables the translation of addresses
of address translation; refer to SECTION 12 APPLICATIONS INFORMATION
The pipeline refill signal indicates that the MC68030 is beginning to refill the
The microsequencer status signal indicates the state of the internal micro-
The following signals support emulation by providing a means for an em-
supplying internal status information to an emulator. Refer to SECTION 12
support.
emulator support. Refer to 6.1 ON-CHIP CACHE ORGANIZATION AND OP-
ERATION for information about the caches; refer to SECTION 12 APPLICA-
CDIS does not flush the data and instruction caches; entries remain unaltered
by the MMU. Refer to 9.4 ADDRESS TRANSLATION CACHE for a description
MMUDIS does not flush the address translation cache (ATC); ATC entries
become available again when MMUDIS is negated.
internal instruction pipeline. Refer to SECTION 12 APPLICATIONS INFOR-
MATION for a description of the use of this signal by an emulator.
sequencer. The varying number of clocks for which this signal is asserted
indicates instruction boundaries, pending exceptions, and the halted con-
dition. Refer to SECTION 12 APPLICATIONS INFORMATION for a description
of the use of this signal by an emulator.
ulator to disable the on-chip caches and memory management unit and by
(REFILL)
MC68030 USER'S MANUAL
( S T A T U S )
MOTOROLA
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