MC68340AG16E Freescale Semiconductor, MC68340AG16E Datasheet - Page 251

• 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

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