ATXMEGA128B1 Datasheet, PDF (3/138 Pages) ATMEL Corporation – 8/16-bit Atmel XMEGA B1 Microcontroller

2. Pinout/Block Diagram
Figure 2-1. Block diagram and pinout
Power
Ground
Digital function
Analog function / Oscillators
LCD
Programming, debug, test
External clock / Crystal pins
General Purpose I/O
VCC
1
PC0
2
PC1
3
PC2
4
PC3
5
PC4
6
PC5
7
PC6
8
PC7
9
GND 10
VCC 11
PD0 12
PD1 13
PD2 14
PDI / RESET 15
PDI 16
GND 17
VCC 18
PE0 19
PE1 20
PE2 21
PE3 22
PE4 23
PE5 24
PE6 25
Port B
Port A
Port R
TC0:1
USART0
SPI
TWI
USB
TC0
USART0
IRCOM
EVENT ROUTING NETWORK
DATA BUS
OSC/CLK
Control
TEMPREF
Watchdog
Power
Oscillator Supervision
Real Time
Counter
VREF
Sleep
Controller
Reset
Controller
Event System Interrupt
Controller
Controller
OCD
Prog/Debug
Interface
Watchdog
Timer
DMA
Controller
Crypto / CRC
CPU
BUS
Controller
EEPROM
FLASH
SRAM
DATA BUS
SEG
Port G
Port M
LCD Controller
75 CAPH
74 CAPL
73 VLCD
72 BIAS2
71 BIAS1
70 VCC
69 GND
68 SEG0
67 SEG1
66 SEG2
65 SEG3
64 SEG4
63 SEG5
62 SEG6
61 SEG7
60 SEG8
59 SEG9
58 SEG10
57 SEG11
56 SEG12
55 SEG13
54 SEG14
53 SEG15
52 SEG16
51 SEG17
Note:
1. For full details on pinout and alternate pin functions refer to “Pinout and Pin Functions” on page 52.
XMEGA B1 [DATASHEET]
3
8330C–AVR–07/2012