ATmega32M1 Atmel Corporation, ATmega32M1 Datasheet - Page 284

• Manufacturer Part Number: ATmega32M1
• Manufacturer: Atmel Corporation

Specifications of ATmega32M1

• Flash (kbytes): 32 Kbytes
• Pin Count: 32
• Max. Operating Frequency: 16 MHz
• Cpu: 8-bit AVR
• # Of Touch Channels: 12
• Hardware Qtouch Acquisition: No
• Max I/o Pins: 27
• Ext Interrupts: 27
• Usb Speed: No
• Usb Interface: No
• Spi: 1
• Uart: 1
• Can: 1
• Lin: 1
• Graphic Lcd: No
• Video Decoder: No
• Camera Interface: No
• Adc Channels: 11
• Adc Resolution (bits): 10
• Adc Speed (ksps): 125
• Analog Comparators: 4
• Resistive Touch Screen: No
• Dac Channels: 1
• Dac Resolution (bits): 10
• Temp. Sensor: Yes
• Crypto Engine: No
• Sram (kbytes): 2
• Eeprom (bytes): 1024
• Self Program Memory: YES
• Dram Memory: No
• Nand Interface: No
• Picopower: No
• Temp. Range (deg C): -40 to 85
• I/o Supply Class: 2.7 to 5.5
• Operating Voltage (vcc): 2.7 to 5.5
• Fpu: No
• Mpu / Mmu: no / no
• Timers: 2
• Output Compare Channels: 14
• Input Capture Channels: 1
• Pwm Channels: 10
• 32khz Rtc: No
• Calibrated Rc Oscillator: Yes

26.7.16
In
Table 26-13. Boot Size Configuration, ATmega64M1 (64K product)
Notes:
Table 26-14. Read-While-Write Limit
For details about these two section, see
Write Section” on page
Table 26-15. Explanation of Different Variables used in
Note:
284
BOOTSZ1
Section
Read-While-Write section (RWW)
No Read-While-Write section (NRWW)
Variable
PCMSB
PAGEMSB
ZPCMSB
ZPAGEMSB
PCPAGE
PCWORD
Table 26-10
1
1
0
0
1. The different BOOTSZ Fuse configurations are shown in
2. 1 word equals 2 bytes
1. Z15:Z13: always ignored
ATmega16M1/32M1/64M1
ATmega64M1 - 64K - Flash Boot Loader Parameters
Z0: should be zero for all SPM commands, byte select for the LPM instruction.
See
Programming
BOOTSZ0
through
“Addressing the Flash During Self-Programming” on page 275
PC[14:7]
PC[6:0]
1
0
1
0
14
7
Table
271.
Boot Size
512 words
1024 words
2048 words
4096 words
26-12, the parameters used in the description of the self programming are given.
Corresponding
Z-value
Z15:Z8
Z7:Z1
(2)
Z15
Z8
Pages
(1)
“NRWW – No Read-While-Write Section” on page 271
16
32
8
4
Application
Flash Section
0x0000 - 0x7DFF
0x0000 - 0x7BFF
0x0000 - 0x77FF
0x0000 - 0x6FFF
Description
Most significant bit in the Program Counter (the Program Counter is 15 bits PC[14:0])
Most significant bit which is used to address the words within one page (64 words in a page
requires 7 bits PC [6:0])
Bit in Z-register that is mapped to PCMSB. Because Z0 is not used, the ZPCMSB equals
PCMSB + 1
Bit in Z-register that is mapped to PAGEMSB. Because Z0 is not used, the ZPAGEMSB
equals PAGEMSB + 1
Program counter page address: Page select, for page erase and page write
Program counter word address: Word select, for filling temporary buffer (must be zero
during page write operation)
Pages
224
32
Figure 26-3 on page 276
Figure 26-2 on page 273
Boot Loader
Flash Section
0x7E00 - 0x7FFF
0x7C00 - 0x7FFF
0x7800 - 0x7FFF
0x7000 - 0x7FFF
Address
0x0000 - 0x6FFF
0x7000 - 0x7FFF
for details about the use of Z-pointer during Self-
and the Mapping to the Z-pointer
End Application
Section
0x7DFF
0x7BFF
0x77FF
0x6FFF
and
“RWW – Read-While-
Boot Reset Address
(Start Boot Loader
Section)
0x7E00
0x7C00
0x7800
0x7000
8209D–AVR–11/10