ATXMEGA64A1-CU View Datasheet(PDF) - Atmel Corporation
Part Name
Description
Manufacturer
ATXMEGA64A1-CU Datasheet PDF : 107 Pages
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XMEGA A1
29. Pinout and Pin Functions
The pinout of XMEGA A1 is shown in “Pinout/Block Diagram” on page 3. In addition to general
I/O functionality, each pin may have several functions. This will depend on which peripheral is
enabled and connected to the actual pin. Only one of the alternate pin functions can be used at
time.
29.1 Alternate Pin Function Description
29.1.1
The tables below shows the notation for all pin functions available and describes its function.
Operation/Power Supply
29.1.2
VCC
AVCC
GND
Port Interrupt functions
Digital supply voltage
Analog supply voltage
Ground
29.1.3
SYNC
ASYNC
Analog functions
Port pin with full synchronous and limited asynchronous interrupt function
Port pin with full synchronous and full asynchronous interrupt function
29.1.4
ACn
AC0OUT
ADCn
DACn
AREF
EBI functions
Analog Comparator input pin n
Analog Comparator 0 Output
Analog to Digital Converter input pin n
Digital to Analog Converter output pin n
Analog Reference input pin
An
Dn
CSn
ALEn
RE
WE
BAn
CAS
CKE
CLK
DQM
Address line n
Data line n
Chip Select n
Address Latch Enable pin n
Read Enable
External Data Memory Write
Bank Address
Column Access Strobe
SDRAM Clock Enable
SDRAM Clock
Data Mask Signal/Output Enable
(SRAM)
(SRAM)
(SRAM /SDRAM)
(SDRAM)
(SDRAM)
(SDRAM)
(SDRAM)
(SDRAM)
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8067L–AVR–08/10
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