MC68EC000EI20 Freescale Semiconductor, MC68EC000EI20 Datasheet - Page 188

• 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: -

Integer Instructions
cpBcc
Operation:
Assembler
Syntax:
Attributes:
Description: If the specified coprocessor condition is true, program execution continues at
Condition Codes:
Instruction Format:
Instruction Fields:
4-84
15
1
Not affected.
Coprocessor ID field—Identifies the coprocessor for this operation. Coprocessor ID of
location scan PC + displacement. The value of the scan PC is the address of the first
displacement word. The displacement is a twos complement integer that represents
the relative distance in bytes from the scan PC to the destination program counter. The
displacement can be either 16 or 32 bits. The coprocessor determines the specific
condition from the condition field in the operation word.
Size field—Specifies the size of the displacement.
Coprocessor Condition field—Specifies the coprocessor condition to be tested. This
16-Bit Displacement field—The displacement value occupies 16 bits.
32-Bit Displacement field—The displacement value occupies 32 bits.
0 — The displacement is 16 bits.
1 — The displacement is 32 bits.
14
1
000 results in an F-line exception for the MC68030.
field is passed to the coprocessor, which provides directives to the main
processor for processing this instruction.
13
1
12
1
M68000 FAMILY PROGRAMMER’S REFERENCE MANUAL
If cpcc True
cpBcc < label >
Size = (Word, Long)
Branch on Coprocessor Condition
Then Scan PC + d
OPTIONAL COPROCESSOR-DEFINED EXTENSION WORDS
11
COPROCESSOR
10
ID
(MC68020, MC68030)
LONG-WORD DISPLACEMENT
9
WORD OR
8
0
n
PC
7
1
SIZE
6
5
COPROCESSOR CONDITION
4
3
2
cpBcc
MOTOROLA
1
0