MC68340AG25E Freescale Semiconductor, MC68340AG25E Datasheet - Page 251
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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:
10 000
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SECTION 6
DMA CONTROLLER MODULE
The direct memory access (DMA) controller module provides for high-speed transfer
capability to/from an external peripheral or for memory-to-memory data transfer. The DMA
module, shown in Figure 6-1, provides two channels that allow byte, word, or long-word
operand transfers. These transfers can be either single or dual address and to either on-
or off-chip devices. The DMA contains the following features:
MOTOROLA
• Two, Independent, Fully Programmable DMA Channels
• Single-Address Transfers with 32-Bit Address and 32-Bit Data Capability
• Dual-Address Transfers with 32-Bit Address and 16-Bit Data Capability
• Two 32-Bit Transfer Counters
• Four 32-Bit Address Pointers That Can Increment or Remain Constant
• Operand Packing and Unpacking for Dual-Address Transfers
• Supports All Bus-Termination Modes
• Provides Two-Clock-Cycle Internal Module Access
• Provides Two-Clock-Cycle External Access Using MC68340 Chip Selects
• Provides Full DMA Handshake for Burst Transfers and Cycle Steal
M
B
I
Freescale Semiconductor, Inc.
For More Information On This Product,
Figure 6-1. DMA Block Diagram
ARBITRATION
ARBITRATION
MASTER BIU
INTERRUPT
SLAVE BIU
MC68340 USER’S MANUAL
Go to: www.freescale.com
BUS
DMA CHANNEL 2
DMA CHANNEL 1
DMA
HANDSHAKE
SIGNALS
DMA
HANDSHAKE
SIGNALS
.
6- 1
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