AM186ES Advanced Micro Devices, AM186ES Datasheet - Page 134

• Manufacturer Part Number: AM186ES
• Description: microcontrollers provide a low-cost/ high-performance solution for embedded system designers who wish to use the x86 architecture.
• Manufacturer: Advanced Micro Devices

Figure 9-1
9-2
DMA Unit Block Diagram
Destination Address Ch. 1
Destination Address Ch. 0
20-bit Adder/Subtractor
Transfer Counter Ch. 1
Transfer Counter Ch. 0
Source Address Ch. 1
Source Address Ch. 0
20
20
Internal Address/Data Bus
DMA Controller
Channel Control Register 1
Channel Control Register 0
Adder Control
Control
Logic
DMA
16
Logic
Timer Request
Selection
Request
Logic
Interrupt
Request
DRQ1/Serial Port
DRQ0/Serial Port