ATxmega128B1 Atmel Corporation, ATxmega128B1 Datasheet - Page 266
ATxmega128B1
Manufacturer Part Number
ATxmega128B1
Description
Manufacturer
Atmel Corporation
Specifications of ATxmega128B1
Flash (kbytes)
128 Kbytes
Pin Count
100
Max. Operating Frequency
32 MHz
Cpu
8-bit AVR
# Of Touch Channels
16
Hardware Qtouch Acquisition
No
Max I/o Pins
53
Ext Interrupts
53
Usb Transceiver
1
Usb Speed
Full Speed
Usb Interface
Device
Spi
3
Twi (i2c)
1
Uart
2
Segment Lcd
160
Graphic Lcd
No
Video Decoder
No
Camera Interface
No
Adc Channels
16
Adc Resolution (bits)
12
Adc Speed (ksps)
2000
Analog Comparators
4
Resistive Touch Screen
No
Temp. Sensor
Yes
Crypto Engine
AES/DES
Sram (kbytes)
8
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
3
Output Compare Channels
10
Input Capture Channels
10
Pwm Channels
10
32khz Rtc
Yes
Calibrated Rc Oscillator
Yes
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
ATxmega128B1-AU
Manufacturer:
TI
Quantity:
90
Company:
Part Number:
ATxmega128B1-U
Manufacturer:
FUJITSU
Quantity:
632
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20.7.2
20.7.3
8291A–AVR–10/11
INTCTRL – Interrupt Control register
STATUS – Status register
Table 20-3.
• Bit 7:2 – 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 1:0 – INTLVL[1:0]: Interrupt Level
These bits enable the SPI interrupt and select the interrupt level, as described in
Programmable Multilevel Interrupt Controller” on page
gered when IF in the STATUS register is set.
• Bit 7 – IF: Interrupt Flag
This flag is set when a serial transfer is complete and one byte is completely shifted in/out of the
DATA register. If SS is configured as input and is driven low when the SPI is in master mode,
this will also set this flag. IF is cleared by hardware when executing the corresponding interrupt
vector. Alternatively, the IF flag can be cleared by first reading the STATUS register when IF is
set, and then accessing the DATA register.
Bit
+0x01
Read/Write
Initial Value
Bit
+0x02
Read/Write
Initial Value
CLK2X
0
0
0
0
1
1
1
1
IF
7
–
R
0
R
7
0
Relationship between SCK and the peripheral clock (Clk
WRCOL
6
–
R
0
R
6
0
PRESCALER[1:0]
R
R
5
–
0
5
–
0
00
01
10
11
00
01
10
11
R
R
4
–
0
4
–
0
R
R
3
–
0
3
–
0
SCK Frequency
Clk
Clk
Clk
Clk
Clk
Clk
Clk
Clk
Atmel AVR XMEGA B
PER
PER
PER
PER
PER
PER
PER
PER
133. The enabled interrupt will be trig-
/4
/16
/64
/128
/2
/8
/32
/64
R
R
2
–
0
2
–
0
R/W
PER
R
1
0
1
–
0
INTLVL[1:0]
) frequency.
R/W
R
0
0
”Interrupts and
0
–
0
INTCTRL
STATUS
266
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