ATxmega32D4 Atmel Corporation, ATxmega32D4 Datasheet - Page 145
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ATxmega32D4
Manufacturer Part Number
ATxmega32D4
Description
Manufacturer
Atmel Corporation
Specifications of ATxmega32D4
Flash (kbytes)
32 Kbytes
Pin Count
44
Max. Operating Frequency
32 MHz
Cpu
8-bit AVR
# Of Touch Channels
16
Hardware Qtouch Acquisition
No
Max I/o Pins
34
Ext Interrupts
34
Usb Speed
No
Usb Interface
No
Spi
4
Twi (i2c)
2
Uart
2
Graphic Lcd
No
Video Decoder
No
Camera Interface
No
Adc Channels
12
Adc Resolution (bits)
12
Adc Speed (ksps)
200
Analog Comparators
2
Resistive Touch Screen
No
Temp. Sensor
Yes
Crypto Engine
No
Sram (kbytes)
4
Eeprom (bytes)
1024
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
4
Output Compare Channels
14
Input Capture Channels
14
Pwm Channels
14
32khz Rtc
Yes
Calibrated Rc Oscillator
Yes
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Quantity
Price
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12.11.15 PERL - Period Register L
12.11.16 CCxH - Compare or Capture Register n H
12.11.17 CCxL - Compare or Capture Register n L
12.11.18 PERBUFH - Timer/Counter Period Buffer H
8210B–AVR–04/10
• Bit 7:0 - PER[7:0]
These bits holds the 8 LSB of the 16-bit Period register.
The CCxH and CCxL register pair represents the 16-bit value CCx.
These 16-bit registers have two functions dependent of mode of operation. For capture opera-
tion these registers constitute the second buffer level and access point for the CPU. For
compare operation these registers are all continuously compared to the counter value. Normally
the outputs form the comparators are then used for generating waveforms.
CCx are updated with the buffer value from the corresponding CCxBUF register when an
UPDATE condition occurs.
• Bit 7:0 - CCx[15:8]
These bits holds the 8 MSB of the 16-bit Compare or Capture register.
• Bit 7:0 - CCx[7:0]
These bits holds the 8 LSB of the 16-bit Compare or Capture register.
The PERBUFH and PERBUFL register pair represents the 16-bit value PERBUF. This 16-bit
register serves as the buffer for the period register (PER). Accessing this register using CPU will
affect the PERBUFV flag.
Bit
Read/Write
Initial Value
Bit
Read/Write
Initial Value
Bit
+0x26
Read/Write
Initial Value
R/W
R/W
R/W
7
0
7
1
7
0
R/W
R/W
R/W
6
0
6
1
6
0
R/W
R/W
R/W
5
0
5
1
5
0
R/W
R/W
R/W
4
0
4
1
4
0
CCx[7:0]
CCx[15:8]
PER[7:0]
R/W
R/W
R/W
3
0
3
1
3
0
R/W
R/W
R/W
2
0
2
1
2
0
R/W
R/W
R/W
1
0
1
1
1
0
XMEGA D
R/W
R/W
R/W
0
0
0
1
0
0
CCxH
CCxL
PERL
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