MC68EC000EI16 Freescale Semiconductor, MC68EC000EI16 Datasheet - Page 189

• Manufacturer Part Number: MC68EC000EI16
• Description: IC MPU 32BIT 16MHZ 68-PLCC
• Manufacturer: Freescale Semiconductor

Specifications of MC68EC000EI16

• Processor Type: M680x0 32-Bit
• Speed: 16MHz
• Voltage: 3.3V, 5V
• Mounting Type: Surface Mount
• Package / Case: 68-PLCC
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Features: -

cpDBcc
Operation:
Assembler
Syntax:
Attributes:
Description: If the specified coprocessor condition is true, execution continues with the
Condition Codes:
Instruction Format:
Instruction Fields:
MOTOROLA
15
1
0
Not affected.
Coprocessor ID field—Identifies the coprocessor for this operation; coprocessor ID of
next instruction. Otherwise, the low-order word in the specified data register is
decremented by one. If the result is equal to – 1, execution continues with the next
instruction. If the result is not equal to – 1, execution continues at the location indicated
by the value of the scan PC plus the sign-extended 16-bit displacement. The value of
the scan PC is the address of the 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 coprocessor determines the specific condition
from the condition word that follows the operation word.
Register field—Specifies the data register used as the counter.
Coprocessor Condition field—Specifies the coprocessor condition to be tested. This
Displacement field—Specifies the distance of the branch (in bytes).
14
1
0
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
0
12
1
0
M68000 FAMILY PROGRAMMER’S REFERENCE MANUAL
If cpcc False
cpDBcc Dn, < label >
Size = (Word)
Then (Dn – 1
OPTIONAL COPROCESSOR-DEFINED EXTENSION WORDS
11
0
COPROCESSOR
Test Coprocessor Condition
10
ID
0
Decrement and Branch
(MC68020, MC68030)
9
0
16-BIT DISPLACEMENT
Dn; If Dn
8
0
0
7
0
0
– 1 Then Scan PC + d
6
1
0
5
0
COPROCESSOR CONDITION
4
0
3
1
Integer Instructions
cpDBcc
n
2
REGISTER
PC)
1
4-85
0