MC68EC000EI20 Freescale Semiconductor, MC68EC000EI20 Datasheet - Page 131

• 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: -

BCHG
Operation:
Assembler
Syntax:
Attributes:
Description: Tests a bit in the destination operand and sets the Z condition code
Condition Codes:
MOTOROLA
appropriately, then inverts the specified bit in the destination. When the destination is
a data register, any of the 32 bits can be specified by the modulo 32-bit number. When
the destination is a memory location, the operation is a byte operation, and the bit
number is modulo 8. In all cases, bit zero refers to the least significant bit. The bit
number for this operation may be specified in either of two ways:
X — Not affected.
N — Not affected.
Z — Set if the bit tested is zero; cleared otherwise.
V — Not affected.
C — Not affected.
1. Immediate—The bit number is specified in a second word of the instruction.
2. Register—The specified data register contains the bit number.
—
X
—
N
M68000 FAMILY PROGRAMMER’S REFERENCE MANUAL
TEST ( < number > of Destination)
TEST ( < number > of Destination)
BCHG Dn, < ea >
BCHG # < data > , < ea >
Size = (Byte, Long)
Z
*
—
V
Test a Bit and Change
—
C
(M68000 Family)
Z;
< bit number > of Destination
Integer Instructions
BCHG
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