AT32UC3L064-AUT Atmel, AT32UC3L064-AUT Datasheet - Page 611
AT32UC3L064-AUT
Manufacturer Part Number
AT32UC3L064-AUT
Description
MCU AVR32 64KB FLASH 48TQFP
Manufacturer
Atmel
Series
AVR®32 UC3r
Datasheets
1.ATAVRONE-PROBECBL.pdf
(16 pages)
2.AT32UC3L-EK.pdf
(858 pages)
3.AT32UC3L016-D3HT.pdf
(110 pages)
Specifications of AT32UC3L064-AUT
Core Processor
AVR
Core Size
32-Bit
Speed
50MHz
Connectivity
I²C, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, DMA, PWM, WDT
Number Of I /o
36
Program Memory Size
64KB (64K x 8)
Program Memory Type
FLASH
Ram Size
16K x 8
Voltage - Supply (vcc/vdd)
1.62 V ~ 3.6 V
Data Converters
A/D 9x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
48-TQFP, 48-VQFP
Processor Series
AT32UC3x
Core
AVR32
Data Bus Width
32 bit
Data Ram Size
16 KB
Interface Type
SPI/TWI/USART
Maximum Clock Frequency
50 MHz
Number Of Programmable I/os
36
Number Of Timers
7
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
3rd Party Development Tools
EWAVR32, EWAVR32-BL
Development Tools By Supplier
AT32UC3L-EK
Minimum Operating Temperature
- 40 C
On-chip Adc
9-ch x 10-bit
Package
48TQFP
Device Core
AVR32
Family Name
AT32
Maximum Speed
50 MHz
Operating Supply Voltage
1.8|3.3 V
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
AT32UC3L064-AUT
Manufacturer:
HONGFA
Quantity:
30 000
Part Number:
AT32UC3L064-AUT
Manufacturer:
MICROCHIP/微芯
Quantity:
20 000
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26.7.5
32099F–11/2010
Pen Detect
If no contact is applied to the resistive touch screen films, any resistive touch screen conversion
result will be undefined as the film being measured is floating. This can be avoided by enabling
Pen Detect and only trigger resistive touch screen conversions when the Pen Contact
(PENCNT) status bit in the Status Register (SR) is one. Pen Detect is enabled by writing a one
to the Pen Detect (PENDET) bit in the Mode Register (MR).
When Pen Detect is enabled, the ADCIFB grounds the vertical panel by applying GND to X
X
will in this mode be tristated. Since there is no contact, no current is flowing and there is no
related power consumption. As soon as a contact occurs, GND will propagate to Y
down Y
A programmable debouncing filter can be used to filter out false pen detects because of noise.
The debouncing filter is programmable from one CLK_ADC period and up to 2
ods. The debouncer length is set by writing to the PENDBC field in MR.
Figure 26-4. Resistive Touch Screen Pen Detect
The Resistive Touch Screen Pen Detect can be used to generate an ADCIFB interrupt request
or it can be used to trig a conversion, so that a position can be measured as soon as a contact is
detected.
The Pen Detect Mode generates two types of status signals, reported in the Status Register
(SR):
Before a current change is reflected in the SR, the new status must be stable for the duration of
the debouncing time.
M
• The bit PENCNT is set when current flows and remains set until current stops.
• The bit NOCNT is set when no current flows and remains set until current flows.
and polarizes the horizontal panel by enabling pull-up on the pin connected to Y
P
X
Y
, allowing the contact to be registered by the ADCIFB.
X
Y
M
M
P
P
Tristate
GND
GND
Pullup
Touch Screen
Sequencer
Resistive
T o the ADC
AT32UC3L016/32/64
D ebouncer
PENDBC
15
Pen Int er r upt
CLK_ADC peri-
P
. The Y
M
by pulling
P
M
and
611
pin
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