MC68020FE33E Freescale Semiconductor, MC68020FE33E Datasheet - Page 35

• Manufacturer Part Number: MC68020FE33E
• Description: IC MICROPROCESSOR 32BIT 132CQFP
• Manufacturer: Freescale Semiconductor

Specifications of MC68020FE33E

• Processor Type: M680x0 32-Bit
• Speed: 33MHz
• Voltage: 5V
• Mounting Type: Surface Mount
• Package / Case: 132-CQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Features: -

2.3.2 Exception Stack Frame
Exception processing saves the most volatile portion of the current processor context on
the top of the supervisor stack. This context is organized in a format called the exception
stack frame. This information always includes a copy of the SR, the PC, the vector offset
of the vector, and the frame format field. The frame format field identifies the type of stack
frame. The RTE instruction uses the value in the format field to properly restore the
information stored in the stack frame and to deallocate the stack space. The general form
of the exception stack frame is illustrated in Figure 2-1. Refer to Section 6 Exception
Processing for a complete list of exception stack frames.
2-6
Figure 2-1. General Exception Stack Frame
SSP
Freescale Semiconductor, Inc.
For More Information On This Product,
15
M68020 USER’S MANUAL
FORMAT
Go to: www.freescale.com
ADDITIONAL PROCESSOR STATE INFORMATION
(2, 6, 12, OR 42 WORDS, IF NEEDED)
12
PROGRAM COUNTER
STATUS REGISTER
VECTOR OFFSET
0
MOTOROLA