ATxmega32D4 Atmel Corporation, ATxmega32D4 Datasheet - Page 15
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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
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
ATxmega32D4-AU
Manufacturer:
Atmel
Quantity:
123
Part Number:
ATxmega32D4-AU
Manufacturer:
ATMEL/爱特梅尔
Quantity:
20 000
Company:
Part Number:
ATxmega32D4-CU
Manufacturer:
Maxim
Quantity:
71
Company:
Part Number:
ATxmega32D4-MH
Manufacturer:
Atmel
Quantity:
1 910
Company:
Part Number:
ATxmega32D4-MH
Manufacturer:
Atmel
Quantity:
1 704
Part Number:
ATxmega32D4-MH
Manufacturer:
ATMEL/爱特梅尔
Quantity:
20 000
3.14.5
3.14.6
3.14.7
8210B–AVR–04/10
RAMPZ - Extended Z-Pointer Register
EIND - Extended Indirect Register
SPL - Stack Pointer Register Low
This register is concatenated with the Z-register for indirect addressing (LD/LDD/ST/STD) of the
whole data memory space on devices with more than 64K bytes of data memory. RAMPZ is
concatenated with the Z-register when reading (ELPM) program memory locations above the
first 64K bytes, and writing (SPM) program memory locations above the first 128K bytes of the
program memory.
When accessing data addressees below 64K bytes, reading program memory locations below
64K bytes and writing program memory locations below 128K bytes, this register is not in use.
This register is not available if the data memory including external memory and program mem-
ory in the device is less than 64K bytes.
• Bit 7:0 – RAMPZ[7:0]: Extended Z-pointer Address bits
These bits holds the 8 MSB of the 24-bit address created by RAMPZ and the 16-bit Z-register.
Only the number of bits required to address the available data and program memory is imple-
mented for each device. Unused bits will always read as zero.
This register is concatenated with the Z-register for enabling extended indirect jump (EIJMP)
and call (ECALL) to the whole program memory space devices with more than 128K bytes of
program memory. For jump or call to addressees below 128K bytes, this register is not in use.
This register is not available if the program memory in the device is less than 128K bytes.
• Bit 7:0 - EIND[7:0]: Extended Indirect Address bits
These bits holds the 8 MSB of the 24-bit address created by EIND and the 16-bit Z-register.
Only the number of bits required to access the available program memory is implemented for
each device. Unused bits will always read as zero.
The SPH and SPL register pair represent the 16-bit value SP. The SP holds the Stack Pointer
that point to the top of the Stack. After reset, the Stack Pointer points to the highest internal
SRAM address. When SPL is written all interrupts are disabled for up to four instructions or until
SPH is also written. Any pending interrupts will be executed according to their priority once inter-
rupts are enabled again.
Only the number of bits required to address the available data memory including external mem-
ory, up to 64K bytes is implemented for each device. Unused bits will always read as zero.
Bit
+0x0B
Read/Write
Initial Value
Bit
+0x0C
Read/Write
Initial Value
R/W
R/W
7
0
7
0
R/W
R/W
6
0
6
0
R/W
R/W
5
0
5
0
R/W
R/W
4
0
4
0
RAMPZ[7:0]
EIND[7:0]
R/W
R/W
3
0
3
0
R/W
R/W
2
0
2
0
R/W
R/W
1
0
1
0
XMEGA D
R/W
R/W
0
0
0
0
RAMPZ
EIND
15