MC68340AG16E Freescale Semiconductor, MC68340AG16E Datasheet - Page 291

• Manufacturer Part Number: MC68340AG16E
• Description: IC MPU 32BIT 16MHZ 144-LQFP
• Manufacturer: Freescale Semiconductor

Specifications of MC68340AG16E

• Processor Type: M683xx 32-Bit
• Speed: 16MHz
• Voltage: 5V
• Mounting Type: Surface Mount
• Package / Case: 144-LQFP
• Controller Family/series: 68K
• Core Size: 32 Bit
• No. Of I/o's: 16
• Cpu Speed: 16MHz
• No. Of Timers: 2
• Embedded Interface Type: UART
• Digital Ic Case Style: LQFP
• Rohs Compliant: Yes
• Processor Series: M683xx
• Core: CPU32
• Maximum Clock Frequency: 16 MHz
• Maximum Operating Temperature: + 105 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: 0 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Features: -
• Lead Free Status / Rohs Status: Details

* 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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