User`s manual

Am186™CC Microcontroller Router Reference Design User’s Manual
2-10
Figure 2-2 shows the Am186CC microcontroller block diagram.
Figure 2-2. Am186
™
CC Microcontroller Block Diagram
Am186
™
CC Microcontroller Power Supply
The Am186CC microcontroller router reference design provides a 3.3-V power
supply for the Am186CC microcontroller. The power supply is sourced from a
3.3-V LDO regulator (U32) from a 5-V switching power supply. The digital and
analog power pins are isolated by filtering to prevent noise on the digital circuitry
from affecting the internal analog block.
Smart
DMA (8)
General-
Purpose
DMA (4)
Physical
Interface
Raw DCE
PCM
Serial Communications Peripherals
TSA
TSA
TSA
TSA
Muxing
Glueless
Interface
to RAM/ROM
DRAM
Controller
Am186
CPU
Chip
Selects
(48)
Watchdog
Timer
Interrupt
Controller
UART
High-Speed
UART with
Autobaud
USB
Synchronous
HDLC
HDLC
HDLC
HDLC
(14)
Highway
GCI
17 Ext Sources
PIOs
Serial
Interface (SSI)
Timers
(3)
System PeripheralsMemory Peripherals
(IOM-2)
Controller
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