MC68030FE20C Freescale Semiconductor, MC68030FE20C Datasheet - Page 124

• Manufacturer Part Number: MC68030FE20C
• Description: IC MPU 32BIT ENHANCED 132-CQFP
• Manufacturer: Freescale Semiconductor

Specifications of MC68030FE20C

• Processor Type: M680x0 32-Bit
• Speed: 20MHz
• Voltage: 5V
• Mounting Type: Surface Mount
• Package / Case: 132-CQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Features: -

4.3.2 Exception Stack Frame
MOTOROLA
TION PROCESSING, and Table 8-1 lists the exception vector assignments.
format called the exception stack frame. This information always includes a
the stack space. The general form of the exception stack frame is illustrated
even be dynamically relocated for each task that is executed by an operating
system. Details of exception processing are provided in SECTION 8 EXCEP-
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
copy of the status register, the program counter, 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
in Figure 4-1. Refer to SECTION 8 EXCEPTION PROCESSING for a complete
list of exception stack frames.
SP
15
Figure 4-1. General Exception Stack Frame
FORMAT
MC68030 USER'S MANUAL
12
l
ADDITIONAL PROCESSOR STATE INFORMATION
(2, 6. 12. OR 42 WORDS. IF NEEDED)
PROGRAM COUNTER
STATUS REGISTER
VECTOR OFFSET
4-7
4