MC68020EH25E Freescale Semiconductor, MC68020EH25E Datasheet - Page 187
![no-image](/images/manufacturer_photos/0/2/262/freescale_semiconductor_sml.jpg)
MC68020EH25E
Manufacturer Part Number
MC68020EH25E
Description
IC MPU 32BIT 33MHZ 132-PQFP
Manufacturer
Freescale Semiconductor
Datasheet
1.MC68020EH16E.pdf
(306 pages)
Specifications of MC68020EH25E
Processor Type
M680x0 32-Bit
Speed
25MHz
Voltage
5V
Mounting Type
Surface Mount
Package / Case
132-MQFP, 132-PQFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Features
-
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
MC68020EH25E
Manufacturer:
Freescale Semiconductor
Quantity:
10 000
- Current page: 187 of 306
- Download datasheet (3Mb)
7.4.5 Supervisor Check Primitive
The supervisor check primitive verifies that the main processor is operating in the
supervisor privilege level while executing a coprocessor instruction. This primitive applies
to instructions in the general and conditional coprocessor instruction categories. Figure
7-25 shows the format of the supervisor check primitive.
The supervisor check primitive uses the PC bit as described in 7.4.2 Coprocessor
Response Primitive General Format. Bit 15 is shown as one, but during execution of a
general category instruction, this primitive performs the same operations, regardless of the
value of bit 15. However, if this primitive is issued with bit 15 = 0 during a conditional
category instruction, the main processor initiates protocol violation exception processing.
When the MC68020/EC020 reads the supervisor check primitive from the response CIR, it
checks the value of the S-bit in the SR. If S = 0 (main processor operating at user privilege
level), the main processor aborts the coprocessor instruction by writing an abort mask to
the control CIR (refer to 7.3.2 Control CIR). The main processor then initiates privilege
violation exception processing (refer to 7.5.2.3 Privilege Violations). If the main
processor is at the supervisor privilege level when it receives this primitive, it reads the
response CIR again.
The supervisor check primitive allows privileged instructions to be defined in the
coprocessor general and conditional instruction categories. This primitive should be the
first one issued by the coprocessor during the dialog for an instruction that is implemented
as privileged.
7.4.6 Transfer Operation Word Primitive
The transfer operation word primitive requests a copy of the coprocessor instruction
operation word for the coprocessor. This primitive applies to general and conditional
category instructions. Figure 7-26 shows the format of the transfer operation word
primitive.
7-34
15
15
CA
1
PC
PC
14
14
Figure 7-26. Transfer Operation Word Primitive Format
13
13
0
0
Figure 7-25. Supervisor Check Primitive Format
12
12
0
0
Freescale Semiconductor, Inc.
For More Information On This Product,
11
11
0
0
10
10
1
1
M68020 USER’S MANUAL
Go to: www.freescale.com
9
0
9
1
8
0
8
1
7
0
7
0
6
0
6
0
5
0
5
0
4
0
4
0
3
0
3
0
2
0
2
0
1
0
1
0
MOTOROLA
0
0
0
0
Related parts for MC68020EH25E
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: