MC68030FE33C Freescale Semiconductor, MC68030FE33C Datasheet - Page 293

• Manufacturer Part Number: MC68030FE33C
• Description: IC MPU 32BIT ENHANCED 132-CQFP
• Manufacturer: Freescale Semiconductor

Specifications of MC68030FE33C

• 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: -

8
8-26
the proper internal registers, deallocates the stack, and resumes normal pro-
the frame is read into the internal registers.
exception, respectively. Otherwise, the processor reads the entire frame into
cessing. Once the processor begins to load the frame to restore its internal
state, the assertion of the BERR signal causes the processor to enter the
BUS FAULT RECOVERY for a description of the processing that occurs after
If a
sequence of the RTE instruction, either due to any of the errors previously
described or due to an illegal format code, the processor creates a normal
both ends of the stack frame to make sure it is accessible. If the frame is
invalid or inaccessible, the processor takes a format error or a bus error
halted state with the continuous assertion of the STATUS signal. Refer to 8.2
format error or bus error exception occurs during the frame validation
Figure 8-8. RTE Instruction for Throwaway Four-Word Frame
ERROR EXCEPTION
TAKE FORMAT
INVALID FORMAT WORD
MC68030 USER'S MANUAL
TEMP ~
READ FORMAT WORD
OTHER FORMATS " )
OTHERWISE
OTHERWISE
OTHERilS E
ENTRY
(SP) +
J
(THROWAWAY FRAME)
FORMAT CODE = $1
FORMAT CODE = $0 (4-WORD FRAME)
SP ~
SP ~
SR ~ - - TEMP
PC ~
SR "~-- TEMP
EXIT
1
SP+6
SP + 6
(SP) +
MOTOROLA