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MC68340 Datasheet(PDF) 217 Page - Freescale Semiconductor, Inc

Part # MC68340
Description  Integrated Processor with DMA User?셲 Manual
PDF  441 Pages
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Manufacturer  FREESCALE [Freescale Semiconductor, Inc]
Direct Link  http://www.freescale.com
Logo FREESCALE - Freescale Semiconductor, Inc

MC68340 Datasheet(HTML) 217 Page - Freescale Semiconductor, Inc

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5- 80
MC68340 USER’S MANUAL
MOTOROLA
space accessed. Only absolute addressing is supported. Valid data sizes include byte,
word, and long word.
Command Format:
15
14
13
12
11
10
9876543210
00011000
OP SIZE
000000
Command Sequence:
MS ADDR
"NOT READY"
XXX
"ILLEGAL"
LS ADDR
"NOT READY"
NEXT CMD
"NOT READY"
WRITE (B/W)
???
NEXT CMD
"NOT READY"
XXX
"NOT READY"
XXX
XXX
BERR/AERR
NEXT CMD
"CMD COMPLETE"
DATA
"NOT READY"
WRITE
MEMORY
LOCATION
MS ADDR
"NOT READY"
XXX
"ILLEGAL"
LS ADDR
"NOT READY"
NEXT CMD
"NOT READY"
WRITE (LONG)
???
MS DATA
"NOT READY"
LS DATA
"NOT READY"
WRITE
MEMORY
LOCATION
NEXT CMD
"NOT READY"
XXX
"NOT READY"
XXX
XXX
BERR/AERR
NEXT CMD
"CMD COMPLETE"
Operand Data:
Two operands are required for this instruction. The first operand is a long-word absolute
address that specifies a location to which the operand data is to be written. The second
operand is the data. Byte data is transmitted as a 16-bit word, justified in the least
significant byte; 16- and 32-bit operands are transmitted as 16 and 32 bits, respectively.
Result Data:
Successful write operations return a status of $0FFFF. Bus or address errors on the
write cycle are indicated by the assertion of bit 16 in the status message and by a data
pattern of $0001.
5.6.2.8.10 Dump Memory Block (DUMP). DUMP is used in conjunction with the READ
command to dump large blocks of memory. An initial READ is executed to set up the
Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com



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