MC68020 Motorola, MC68020 Datasheet - Page 274
![no-image](/images/manufacturer_photos/0/4/459/motorola_sml.jpg)
MC68020
Manufacturer Part Number
MC68020
Description
(MC68020 / MC68EC020) MICROPROCESSORS USERS MANUAL
Manufacturer
Motorola
Datasheet
1.MC68020.pdf
(306 pages)
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
MC68020CEH16E
Manufacturer:
Freescale Semiconductor
Quantity:
10 000
Company:
Part Number:
MC68020CEH25
Manufacturer:
XILINX
Quantity:
101
Company:
Part Number:
MC68020CEH25E
Manufacturer:
Freescale Semiconductor
Quantity:
10 000
Company:
Part Number:
MC68020CFC16E
Manufacturer:
MOT
Quantity:
190
Part Number:
MC68020CFC16E
Manufacturer:
MOTOROLA/摩托罗拉
Quantity:
20 000
Company:
Part Number:
MC68020CFC20E
Manufacturer:
FREESCALE
Quantity:
101
Company:
Part Number:
MC68020CFC25
Manufacturer:
FREESCALE
Quantity:
101
Company:
Part Number:
MC68020EH16E
Manufacturer:
Freescale Semiconductor
Quantity:
10 000
Company:
Part Number:
MC68020EH20E
Manufacturer:
Freescale Semiconductor
Quantity:
10 000
Part Number:
MC68020FC16E
Manufacturer:
MOTOROLA/摩托罗拉
Quantity:
20 000
- Current page: 274 of 306
- Download datasheet (2Mb)
9.8.2 Module Return
The RTM instruction is used to return from a module. For the type $00 module stack
frame, the processor reloads the condition codes, the PC, and the module data area
pointer register from the frame. The frame is removed from the top of the stack, the
argument count is added to the stack pointer, and execution returns to the calling module.
For the type $01 module stack frame, the processor reads the access level, condition
codes, PC, saved module data area pointer, and saved stack pointer from the module
stack frame. The access level is written to the DAL for validation by external hardware; the
processor then reads the access status to check the validation. If the external hardware
determines that the change in access right should not be granted, the access status is
zero, and the processor takes a format error exception. No visible processor registers are
changed, nor should the current access level enforced by external hardware be changed.
If the external hardware determines that the change in access rights should be granted,
the external hardware changes its access level, the values read from the module stack
frame are loaded into the corresponding processor registers, the argument count is added
to the new stack pointer value, and execution returns to the calling module.
If the called module does not wish the saved module data pointer to be loaded into a
register, the RTM instruction word can select register A7, and the loaded value will be
overwritten with the correct stack pointer value after the module stack frame is
deallocated.
9-20
M68020 USER’S MANUAL
MOTOROLA
Related parts for MC68020
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
![MC1723L](/images/manufacturer_photos/0/4/459/motorola_tmb.jpg)
Part Number:
Description:
Motorola, Inc [VOLTAGE REGULATOR]
Manufacturer:
Motorola
Datasheet:
![3N204](/images/manufacturer_photos/0/4/459/motorola_tmb.jpg)
Part Number:
Description:
3N2046367254 MOTOROLA SC (XSTRS/R F)
Manufacturer:
Motorola
Datasheet:
![MPC603PRX300LC](/images/manufacturer_photos/0/4/459/motorola_tmb.jpg)
Part Number:
Description:
MOTOROLA POWERPC 603e MICROPROCESSOR
Manufacturer:
Motorola
![2N7002LT1G/ON](/images/manufacturer_photos/0/4/459/motorola_tmb.jpg)
Part Number:
Description:
Motorola Semiconductor Datasheet Library
Manufacturer:
Motorola
![MBRP30035](/images/manufacturer_photos/0/4/459/motorola_tmb.jpg)
Part Number:
Description:
SWITCHMODE Schottky Power Rectifier(POWERTAP III Package)
Manufacturer:
Motorola
Datasheet:
![MBRP20035L](/images/manufacturer_photos/0/4/459/motorola_tmb.jpg)
Part Number:
Description:
SWITCHMODE Schottky Power Rectifirer
Manufacturer:
Motorola
Datasheet:
![MHPM7A15A60A](/images/manufacturer_photos/0/4/459/motorola_tmb.jpg)
Part Number:
Description:
Hybrid Power Module
Manufacturer:
Motorola
Datasheet:
![MHPM7B15A60A](/images/manufacturer_photos/0/4/459/motorola_tmb.jpg)
Part Number:
Description:
Hybrid Power Module
Manufacturer:
Motorola
Datasheet:
![TE53N50E](/images/manufacturer_photos/0/4/459/motorola_tmb.jpg)
Part Number:
Description:
Search -----> MTE53N50E
Manufacturer:
Motorola
Datasheet:
![MHPM7B20A60A](/images/manufacturer_photos/0/4/459/motorola_tmb.jpg)
Part Number:
Description:
Hybrid Power Module
Manufacturer:
Motorola
Datasheet:
![MHPM7B8A120A](/images/manufacturer_photos/0/4/459/motorola_tmb.jpg)
Part Number:
Description:
Hybrid Power Module
Manufacturer:
Motorola
Datasheet:
![MBRP20060](/images/manufacturer_photos/0/4/459/motorola_tmb.jpg)
Part Number:
Description:
SCHOTTKY BARRIER RECTIFIER 200 AMPERES 60 VOLT
Manufacturer:
Motorola
Datasheet:
![MJ10048](/images/manufacturer_photos/0/4/459/motorola_tmb.jpg)
Part Number:
Description:
NPN SILICON POWER DARLINGTON TRANSISTOR
Manufacturer:
Motorola
Datasheet: