MC68340AG25E Freescale Semiconductor, MC68340AG25E Datasheet - Page 279
MC68340AG25E
Manufacturer Part Number
MC68340AG25E
Description
IC MPU 32BIT 25MHZ 144-LQFP
Manufacturer
Freescale Semiconductor
Datasheet
1.MC68340FE25E.pdf
(441 pages)
Specifications of MC68340AG25E
Processor Type
M683xx 32-Bit
Speed
25MHz
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
25MHz
No. Of Timers
2
Embedded Interface Type
UART
Digital Ic Case Style
LQFP
Rohs Compliant
Yes
Processor Series
M683xx
Core
CPU32
Maximum Clock Frequency
25 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
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
MC68340AG25E
Manufacturer:
Freescale Semiconductor
Quantity:
135
Company:
Part Number:
MC68340AG25E
Manufacturer:
Freescale Semiconductor
Quantity:
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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
Go to: www.freescale.com
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
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