MC68030CRC25C Freescale Semiconductor, MC68030CRC25C Datasheet - Page 158
![no-image](/images/manufacturer_photos/0/2/262/freescale_semiconductor_sml.jpg)
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
-
- Current page: 158 of 599
- Download datasheet (23Mb)
6.3.1,1 WRITE ALLOCATE.
6.3.1.2 D A T A BURST ENABLE.
6.3.1.3 CLEAR D A T A CACHE.
6.3.1.4 CLEAR ENTRY IN D A T A CACHE.
MOTOROLA
the data cache. Operating systems and other software set this bit w h e n burst
f i l l i n g of the data cache is desired. A reset operation clears the DBE bit.
mode (refer to 6,1.2.1 WRITE ALLOCATION) for w r i t e cycles. Clearing this bit
selects the n o - w r i t e - a l l o c a t i o n mode. A reset operation clears t h i s bit. The
s u p e r v i s o r s h o u l d set this bit w h e n it shares data w i t h the user task or w h e n
any task maps m u l t i p l e logical addresses to one physical address. If the data
cache is disabled or frozen, the W A bit is ignored.
f r o m the cache prior to a c o n t e x t switch. The processor clears all valid bits
to the i n d e x and l o n g - w o r d select portion of an address specifies the entry
to be cleared. The processor clears o n l y the specified long w o r d by clearing
the v a l i d bit for the entry at the t i m e a MOVEC instruction loads a one into
the CED bit of the CACR, regardless of the states of the ED and FD bits. The
data cache. Operating systems and other software set this bit to clear data
in the data cache at the t i m e a MOVEC i n s t r u c t i o n loads a one into the CD
bit of the CACR. The CD bit is a l w a y s read as a zero.
in the data cache. The index field of the CAAR (see Figure 6-15) c o r r e s p o n d i n g
CED bit is a l w a y s read as a zero.
31
000000000000000000 WA DBE CD tED FD ED 0
DBE = Data Burst Enabl e
CED = Clear Entry in Data Cache
WA = Write Allocate
IBE = Instruction Burst Enabl e
CEI = Clear Entry in Instruction Cache
CD = Clear Data Cache
ED = Enable Data Cache
FD = Freeze Data Cache
CI = Clear Instruction Cache
El = Enable Instruction Cache
FI = Freeze Instruction Cache
14 13 12 11 !0
Figure 6-14. Cache Control Register
Bit 13, the W A bit, is set to select the w r i t e - a l l o c a t i o n
MC68030 USER'S MANUAL
Bit 11, the CD bit, is set to clear all entries in the
Bit 12, the DBE bit, is set to enable burst f i l l i n g of
Bit 10, the CED bit, is set to clear an entry
9
8
7
0
6
0 IBE CI CEI FI
5
4
3
2
1
El
6-21
0
6
Related parts for MC68030CRC25C
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
![MC680](/images/no-image3.png)
Part Number:
Description:
(MC600 Series) INTEGRATED CIRCUITS
Manufacturer:
ETC
Datasheet:
![MC14560BCP](/images/manufacturer_photos/0/2/263/freescale_semiconductor__inc_tmb.jpg)
Part Number:
Description:
Manufacturer:
Freescale Semiconductor, Inc
Datasheet:
![MC12034AP](/images/manufacturer_photos/0/2/263/freescale_semiconductor__inc_tmb.jpg)
Part Number:
Description:
Manufacturer:
Freescale Semiconductor, Inc
Datasheet:
![MPIC2112P](/images/manufacturer_photos/0/2/263/freescale_semiconductor__inc_tmb.jpg)
Part Number:
Description:
Manufacturer:
Freescale Semiconductor, Inc
Datasheet:
![MC14520BCP](/images/manufacturer_photos/0/2/263/freescale_semiconductor__inc_tmb.jpg)
Part Number:
Description:
Manufacturer:
Freescale Semiconductor, Inc
Datasheet:
![MC12026AP](/images/manufacturer_photos/0/2/263/freescale_semiconductor__inc_tmb.jpg)
Part Number:
Description:
Manufacturer:
Freescale Semiconductor, Inc
Datasheet:
![MC145152P2](/images/manufacturer_photos/0/2/263/freescale_semiconductor__inc_tmb.jpg)
Part Number:
Description:
Manufacturer:
Freescale Semiconductor, Inc
Datasheet:
![MC68HC11A0P](/images/manufacturer_photos/0/2/263/freescale_semiconductor__inc_tmb.jpg)
Part Number:
Description:
Manufacturer:
Freescale Semiconductor, Inc
Datasheet:
![MCM6726DWJ10](/images/manufacturer_photos/0/2/263/freescale_semiconductor__inc_tmb.jpg)
Part Number:
Description:
Manufacturer:
Freescale Semiconductor, Inc
Datasheet:
![MC44355](/images/manufacturer_photos/0/2/263/freescale_semiconductor__inc_tmb.jpg)
Part Number:
Description:
Manufacturer:
Freescale Semiconductor, Inc
Datasheet:
![MC13282AP](/images/manufacturer_photos/0/2/263/freescale_semiconductor__inc_tmb.jpg)
Part Number:
Description:
Manufacturer:
Freescale Semiconductor, Inc
Datasheet:
![MC14519BCP](/images/manufacturer_photos/0/2/263/freescale_semiconductor__inc_tmb.jpg)
Part Number:
Description:
Manufacturer:
Freescale Semiconductor, Inc
Datasheet:
![MC14495P1](/images/manufacturer_photos/0/2/263/freescale_semiconductor__inc_tmb.jpg)
Part Number:
Description:
Manufacturer:
Freescale Semiconductor, Inc
Datasheet:
![SN74LS796N](/images/manufacturer_photos/0/2/263/freescale_semiconductor__inc_tmb.jpg)
Part Number:
Description:
Manufacturer:
Freescale Semiconductor, Inc
Datasheet:
![MC142100CP](/images/manufacturer_photos/0/2/263/freescale_semiconductor__inc_tmb.jpg)
Part Number:
Description:
Manufacturer:
Freescale Semiconductor, Inc
Datasheet: