MC68EC000EI20 Freescale Semiconductor, MC68EC000EI20 Datasheet - Page 630

• Manufacturer Part Number: MC68EC000EI20
• Description: IC MPU 32BIT 20MHZ 68-PLCC
• Manufacturer: Freescale Semiconductor

Specifications of MC68EC000EI20

• Processor Type: M680x0 32-Bit
• Speed: 20MHz
• Voltage: 3.3V, 5V
• Mounting Type: Surface Mount
• Package / Case: 68-PLCC
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Features: -

B.2 EXCEPTION STACK FRAMES
Figures B-1 through B-15 illustrate all exception stack frames for the M68000 family..
MOTOROLA
Figure B-2. MC68000 Bus or Address Error Exception Stack Frame
Figure B-1. MC68000 Group 1 and 2 Exception Stack Frame
Figure B-4. Throwaway Four-Word Stack Frame, Format $1
MC68000 FAMILY PROGRAMMER’S REFERENCE MANUAL
ADDRESS
Figure B-3. Four-Word Stack Frame, Format $0
LOWER
SP
SP
SP
+$02
+$06
+$02
+$06
15
R/W (READ/WRITE): WRITE = 0, READ = 1. I/N
(INSTRUCTION/NOT): INSTRUCTION = 0, NOT = 1.
7
15
PROGRAM COUNTER
ACCESS ADDRESS
15
15
ODD BYTE
0 0 0 0
0 0 0 1
PROGRAM COUNTER HIGH
PROGRAM COUNTER LOW
STATUS REGISTER
5
PROGRAM COUNTER
PROGRAM COUNTER
STATUS REGISTER
STATUS REGISTER
0
R/W
INSTRUCTION REGISTER
4
7
STATUS REGISTER
I/N FUNCTION CODE
3
EVEN BYTE
VECTOR OFFSET
VECTOR OFFSET
2
HIGH
LOW
HIGH
LOW
0
0
0
ADDRESS
HIGHER
Exception Processing Reference
0
0
B-3