MC68340PV16VE Freescale Semiconductor, MC68340PV16VE Datasheet - Page 291
MC68340PV16VE
Manufacturer Part Number
MC68340PV16VE
Description
IC MCU 32BIT 16MHZ 144-LQFP
Manufacturer
Freescale Semiconductor
Datasheet
1.MC68340FE25E.pdf
(441 pages)
Specifications of MC68340PV16VE
Processor Type
M683xx 32-Bit
Speed
16MHz
Voltage
3.3V
Mounting Type
Surface Mount
Package / Case
144-LQFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Features
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Part Number
Manufacturer
Quantity
Price
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Part Number:
MC68340PV16VE
Manufacturer:
Freescale Semiconductor
Quantity:
10 000
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* Normal Operation, ignore FREEZE, dual-address mode. ISM field at 3. Make
* sure CPU32 SR I2-I0 bits are less than or equal to ISM bits for channel startup.
* Supervisor/user reg. unrestricted, MAID field at 3. IARB priority at 4.
* Clear channel control reg.
* Clear STR (start) bit to prevent the channel from starting a transfer early.
* Initialize interrupt reg.
* Interrupt priority at 7, interrupt vector at $42.
* Initialize channel status reg.
* Clear the DONE, BES, BED, CONF and BRKP bits to allow channel to startup.
* Initialize function code reg.
* DMA space, supervisor data space for source and destination.
* Initialize source operand address
* Source address is equal to $6000.
* Initialize destination operand address
* Destination address is equal to $8000.
* Initialize the byte transfer count reg.
* The number of bytes to be transferred is $E or 7 words
* Channel control reg. init. and Start DMA transfers
* No interrupts are enabled, destination (write) cycle. Increment source and
* destination addresses,source size is word, destination size is word.
* REQ is internal. 100% of bus bandwidth, dual-address transfers,
* start the DMA transfers.
***************************************************************************
***************************************************************************
Example 3: Internal Request Generation, Memory Block Initialization.
***************************************************************************
* MC68340 basic DMA channel register initialization example code.
MOTOROLA
MOVE.W
CLR.W
MOVE.W
MOVE.B
MOVE.B
MOVE.L
MOVE.L
MOVE.L
MOVE.W
END
#$0334,(A0)
DMACCR1(A0)
#$0742,DMAINT1(A0)
#$7C,DMACSR1(A0)
#$DD,DMAFCR1(A0)
SARADD,DMASAR1(A0)
DARADD,DMADAR1(A0)
NUMBYTE,DMABTC1(A0)
#$0E8D,DMACCR1(A0)
Freescale Semiconductor, Inc.
For More Information On This Product,
MC68340 USER’S MANUAL
Go to: www.freescale.com
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