ATxmega128D4-AU ATMEL [ATMEL Corporation], ATxmega128D4-AU Datasheet - Page 6

• Manufacturer Part Number: ATxmega128D4-AU
• Description: 8/16-bit Atmel XMEGA D4 Microcontroller
• Manufacturer: ATMEL [ATMEL Corporation]

3.1
Figure 3-1.
8135L–AVR–06/12
PA[0..7]
PB[0..3]
Block Diagram
Digital function
Analog function
XMEGA D4 block diagram.
PORT A (8)
PORT B (4)
Int. Refs.
Tempref
AREFA
VCC/10
AREFB
ADCA
ACA
Programming, debug, test
Oscillator/Crystal/Clock
General Purpose I/O
Controller
Event System
Interrupt
TOSC1
XTAL2/
TOSC2
XTAL/
Controller
CRC
PORT R (2)
PORT C (8)
PR[0..1]
PC[0..7]
SRAM
F
DATA BUS
a l
NVM Controller
s
EVENT ROUTING NETWORK
h
DATA BUS
Oscillator
CPU
Control
Generation
PORT D (8)
Oscillator
Circuits/
PD[0..7]
Clock
BUS Matrix
Prog/Debug
Controller
Controller
E
Sleep
E
Real Time
PORT E (4)
OCD
P
Counter
R
PE[0..3]
O
M
TOSC1
TOSC2
To Clock
Generator
Watchdog
Watchdog
PDI
Oscillator
Supervision
POR/BOD &
Timer
RESET
Power
XMEGA D4
RESET/
PDI_CLK
PDI_DATA
VCC
GND
6