ATmega16 Atmel Corporation, ATmega16 Datasheet - Page 257

• Manufacturer Part Number: ATmega16
• Manufacturer: Atmel Corporation

Specifications of ATmega16

• Flash (kbytes): 16 Kbytes
• Pin Count: 44
• Max. Operating Frequency: 16 MHz
• Cpu: 8-bit AVR
• # Of Touch Channels: 16
• Hardware Qtouch Acquisition: No
• Max I/o Pins: 32
• Ext Interrupts: 3
• Usb Speed: No
• Usb Interface: No
• Spi: 1
• Twi (i2c): 1
• Uart: 1
• Graphic Lcd: No
• Video Decoder: No
• Camera Interface: No
• Adc Channels: 8
• Adc Resolution (bits): 10
• Adc Speed (ksps): 15
• Analog Comparators: 1
• Resistive Touch Screen: No
• Temp. Sensor: No
• Crypto Engine: No
• Sram (kbytes): 1
• Eeprom (bytes): 512
• 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: 3
• Output Compare Channels: 4
• Input Capture Channels: 1
• Pwm Channels: 4
• 32khz Rtc: Yes
• Calibrated Rc Oscillator: Yes

ATmega16 Boot
Loader Parameters
2466T–AVR–07/10
In
are given.
Table 100. Boot Size Configuration
Note:
Table 101. Read-While-Write Limit
Note:
BOOTSZ1
1
1
0
0
Section
Read-While-Write section (RWW)
No Read-While-Write section (NRWW)
Table 100
Do_spm:
Wait_spm:
Wait_ee:
sbrs temp1, RWWSB
ret
; re-enable the RWW section
ldi
call Do_spm
rjmp Return
; check for previous SPM complete
in
sbrc temp1, SPMEN
rjmp Wait_spm
; input: spmcrval determines SPM action
; disable interrupts if enabled, store status
in
cli
; check that no EEPROM write access is present
sbic EECR, EEWE
rjmp Wait_ee
; SPM timed sequence
out
spm
; restore SREG (to enable interrupts if originally enabled)
out
ret
1. The different BOOTSZ Fuse configurations are shown in
1. For details about these two section, see
247
spmcrval, (1<<RWWSRE) | (1<<SPMEN)
temp1, SPMCR
temp2, SREG
SPMCR, spmcrval
SREG, temp2
BOOTSZ0
1
0
1
0
through
and
“RWW – Read-While-Write Section” on page 247
Table
Boot
Size
128
words
256
words
512
words
1024
words
102, the parameters used in the description of the self programming
Pages
2
4
8
16
(1)
(1)
Application
Flash
Section
$0000 -
$1F7F
$0000 -
$1EFF
$0000 -
$1DFF
$0000 -
$1BFF
; If RWWSB is set, the RWW section is not
; ready yet
“NRWW – No Read-While-Write Section” on page
Boot
Loader
Flash
Section
$1F80 -
$1FFF
$1F00 -
$1FFF
$1E00 -
$1FFF
$1C00 -
$1FFF
Pages
112
16
End
Application
section
$1F7F
$1EFF
$1DFF
$1BFF
Figure 125
Address
$0000 - $1BFF
$1C00 - $1FFF
ATmega16(L)
Boot Reset
Address
(start Boot
Loader
Section)
$1F80
$1F00
$1E00
$1C00
257