AT91C140_05 Datasheet, PDF (2/174 Pages) ATMEL Corporation – AT91 ARM Thumb Microcontrollers

2. Block Diagram
Figure 2-1. AT91C140 Block Diagram
JTAG Debug
Interface
ICE
ARM7TDMI Processor
MII PHY
Interface
MII PHY
Interface
Interrupt and
Fast Interrupt
I/O Lines
I/O Lines
Ethernet
10/100 Mbps
MAC Interface
Ethernet
10/100 Mbps
MAC Interface
OSC
PLL
System
Controller
Advanced
Interrupt
Controller
PIO Controller A
PIO Controller B
ASB/ASB
Bridge
32k Bytes
SRAM
Boot ROM
External Bus
Interface
SDRAMC
SMC
Peripheral Bridge
Peripheral Data
Controller
SPI
USART A
USART B
Timer/Counter 0
Timer/Counter 1
Timer/Counter 2
16-bit Data
Memory Bus
Serial Peripherals
Boot DataFlash
Serial Port
Serial Port
PWM Signals
PWM Signals
PWM Signals
2 AT91C140
6069C–ATARM–15-Sep-05