MC68340AG16VE Freescale Semiconductor, MC68340AG16VE Datasheet - Page 279

• Manufacturer Part Number: MC68340AG16VE
• Description: IC MPU 32BIT 16MHZ 144-LQFP
• Manufacturer: Freescale Semiconductor

Specifications of MC68340AG16VE

• Processor Type: M683xx 32-Bit
• Speed: 16MHz
• Voltage: 3.3V
• 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
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Features: -

DSIZE—Destination Size Control Field
REQ—Request Generation Field
BB—Bus Bandwidth Field
MOTOROLA
This field controls the size of the destination (write) bus cycle that the DMA channel is
running. Table 6-3 defines these bits.
This field controls the mode of operation the DMA channel uses to make an operand
transfer request. Table 6-4 defines these bits.
This field controls the percentage of 1024 clock periods of the IMB that the DMA
channel can use during internal requests only. Table 6-5 defines these bits.
Bit 5
0
0
0
0
REQ Field
Table 6-5. BBx Encoding and Bus Bandwidth
Bit 5
Bit 4
Freescale Semiconductor, Inc.
0
0
1
1
0
0
0
0
For More Information On This Product,
*External logic is required to complete a long-
word transfer.
Bit 4
Table 6-3. DSIZEx Encoding
Bit 7
Bit 3
Table 6-4. REQx Encoding
0
1
0
1
0
0
1
1
0
0
1
1
BB Field
MC68340 USER’S MANUAL
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Internal Request at Programmable Rate
Reserved
External Request Burst Transfer Mode
External Request Cycle Steal
Bit 6
Bit 2
0
1
0
1
0
1
0
1
Long Word*
Definition
Definition
Not Used
Definition
100%
25%
50%
75%
Word
Byte
Bus Bandwidth
(Clock Periods)
1024
256
512
768
6- 29