MC68EC000EI20 Freescale Semiconductor, MC68EC000EI20 Datasheet - Page 230

• 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
MOVE16
Operation:
Assembler
Syntax:
Attributes:
Description: Moves the source line to the destination line. The lines are aligned to 16-byte
4-126
boundaries. Applications for this instruction include coprocessor communications,
memory initialization, and fast block copy operations.
MOVE16 has two formats. The postincrement format uses the postincrement address-
ing mode for both source and destination; whereas, the absolute format specifies an
absolute long address for either the source or destination.
Line transfers are performed using burst reads and writes, which begin with the long
word pointed to by the effective address of the source and destination, respectively. An
address register used in the postincrement addressing mode is incremented by 16
after the transfer.
Example:
The line at address $14000 is read into a temporary holding register by a burst read
transfer starting with long-word $14000. Address values in A0 of $14000 – $1400F
cause the same line to be read, starting at different long words. The line is then written
to the line at address $FE800 beginning with long-word $FE800 after the instruction A0
contains $1401F.
Source line at $14000:
Destination line at $FE8000:
LONG WORD 0
LONG WORD 0
$FE800
$14000
M68000 FAMILY PROGRAMMER’S REFERENCE MANUAL
Source Block
MOVE16 (Ax) + ,(Ay) +
MOVE16 (xxx).L,(An)
MOVE16 (xxx).L,(An) +
MOVE16 (An),(xxx).L
MOVE16 (An) + ,(xxx).L
Size = (Line)
MOVE16 (A0) + $FE802
LONG WORD 1
LONG WORD 1
$FE804
$14004
Move 16-Byte Block
Destination Block
(MC68040)
LONG WORD 2
LONG WORD 2
$FE808
$14008
A0 = $1400F
LONG WORD 3
LONG WORD 3
$FE80C
$1400C
MOVE16
MOTOROLA