ATxmega128B3 Atmel Corporation, ATxmega128B3 Datasheet - Page 357
ATxmega128B3
Manufacturer Part Number
ATxmega128B3
Description
Manufacturer
Atmel Corporation
Specifications of ATxmega128B3
Flash (kbytes)
128 Kbytes
Pin Count
64
Max. Operating Frequency
32 MHz
Cpu
8-bit AVR
# Of Touch Channels
16
Hardware Qtouch Acquisition
No
Max I/o Pins
36
Ext Interrupts
36
Usb Transceiver
1
Usb Speed
Full Speed
Usb Interface
Device
Spi
2
Twi (i2c)
1
Uart
1
Segment Lcd
100
Graphic Lcd
No
Video Decoder
No
Camera Interface
No
Adc Channels
8
Adc Resolution (bits)
12
Adc Speed (ksps)
2000
Analog Comparators
2
Resistive Touch Screen
No
Temp. Sensor
Yes
Crypto Engine
AES/DES
Sram (kbytes)
4
Eeprom (bytes)
2048
Self Program Memory
YES
Dram Memory
No
Nand Interface
No
Picopower
Yes
Temp. Range (deg C)
-40 to 85
I/o Supply Class
1.6 to 3.6
Operating Voltage (vcc)
1.6 to 3.6
Fpu
No
Mpu / Mmu
no / no
Timers
2
Output Compare Channels
6
Input Capture Channels
6
Pwm Channels
6
32khz Rtc
Yes
Calibrated Rc Oscillator
Yes
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26.8.7
26.8.8
8291A–AVR–10/11
CURRCTRL – Current Source Control register
CURRCALIB – Current Source Calibration register
This flag is automatically cleared when the analog comparator window interrupt vector is exe-
cuted. The flag can also be cleared by writing a one to its bit location.
• Bit 1 – AC1IF: Analog Comparator 1 Interrupt Flag
This is the interrupt flag for AC1. AC1IF is set according to the INTMODE setting in the corre-
sponding
This flag is automatically cleared when the analog comparator 1 interrupt vector is executed.
The flag can also be cleared by writing a one to its bit location.
• Bit 0 – AC0IF: Analog Comparator 0 Interrupt Flag
This is the interrupt flag for AC0. AC0IF is set according to the INTMODE setting in the corre-
sponding
This flag is automatically cleared when the analog comparator 0 interrupt vector is executed.
The flag can also be cleared by writing a one to its bit location.
• Bit 7 – CURRENT: Current Source Enable
Setting this bit to one will enable the constant current source.
• Bit 6 – CURRMODE: Current Mode
Setting this bit to one will combine the two analog comparator current sources in order to double
the output current for each analog comparator.
• Bit 5:2 – Reserved
These bits are unused and reserved for future use. For compatibility with future devices, always
write these bits to zero when this register is written.
• Bit 1 – AC1CURR: AC1 Current Source Output Enable
Setting this bit to one will enable the constant current source output on the pin selected by MUX-
NEG in AC1MUXTRL.
• Bit 0 – AC0CURR: AC0 Current Source Output Enable
Setting this bit to one will enable the constant current source output on the pin selected by MUX-
NEG in AC0MUXTRL.
Bit
+0x09
Read/Write
Initial Value
Bit
+0x08
Read/Write
Initial Value
”ACnCTRL – Analog Comparator n Control register” on page
”ACnCTRL – Analog Comparator n Control register” on page
CURRENT
R/W
R
7
–
0
7
0
CURRMODE
R
6
–
0
R/W
6
0
R
5
–
0
5
–
R
0
4
–
R
0
4
–
R
0
R/W
3
0
R
3
–
0
Atmel AVR XMEGA B
R/W
2
0
R
2
–
0
CALIB[3:0]
AC1CURR
R/W
R/W
1
0
1
0
353.
353.
AC0CURR
R/W
R/W
0
0
0
0
CURRCALIB
CURRCTRL
357
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