ATMEGA8535-16PU Atmel, ATMEGA8535-16PU Datasheet - Page 232

• Manufacturer Part Number: ATMEGA8535-16PU
• Description: IC AVR MCU 8K 16MHZ 5V 40DIP
• Manufacturer: Atmel
• Series: AVR® ATmegar

Specifications of ATMEGA8535-16PU

• Core Processor: AVR
• Core Size: 8-Bit
• Speed: 16MHz
• Connectivity: I²C, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 32
• Program Memory Size: 8KB (4K x 16)
• Program Memory Type: FLASH
• Eeprom Size: 512 x 8
• Ram Size: 512 x 8
• Voltage - Supply (vcc/vdd): 4.5 V ~ 5.5 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 40-DIP (0.600", 15.24mm)
• Processor Series: ATMEGA8x
• Core: AVR8
• Data Bus Width: 8 bit
• Data Ram Size: 512 B
• Interface Type: 2-Wire, SPI, USART
• Maximum Clock Frequency: 16 MHz
• Number Of Programmable I/os: 32
• Number Of Timers: 3
• Operating Supply Voltage: 4.5 V to 5.5 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: Through Hole
• 3rd Party Development Tools: EWAVR, EWAVR-BL
• Development Tools By Supplier: ATAVRDRAGON, ATSTK500, ATSTK600, ATAVRISP2, ATAVRONEKIT
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 10 bit, 8 Channel
• A/d Inputs: 8-Channel, 10-Bit
• Cpu Speed: 16 MIPS
• Eeprom Memory: 512 Bytes
• Input Output: 32
• Interface: SPI/TWI/USART
• Memory Type: Flash
• Number Of Bits: 8
• Package Type: 40-pin PDIP
• Programmable Memory: 8K Bytes
• Timers: 2-8-bit, 1-16-bit
• Voltage, Range: 4.5-5.5 V
• Controller Family/series: AVR MEGA
• No. Of I/o's: 32
• Eeprom Memory Size: 512Byte
• Ram Memory Size: 512Byte
• Rohs Compliant: Yes
• For Use With: ATSTK600 - DEV KIT FOR AVR/AVR32770-1007 - ISP 4PORT ATMEL AVR MCU SPI/JTAGATAVRISP2 - PROGRAMMER AVR IN SYSTEMATSTK500 - PROGRAMMER AVR STARTER KIT
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

232
ATmega8535(L)
Wrloop:
Rdloop:
Return:
Do_spm:
Wait_spm:
; re-enable the RWW section
ldi
rcall
; transfer data from RAM to Flash page buffer
ldi
ldi
ld
ld
ldi
rcall
adiw ZH:ZL, 2
sbiw loophi:looplo, 2
brne Wrloop
; execute page write
subi
sbci
ldi
rcall
; re-enable the RWW section
ldi
rcall
; read back and check, optional
ldi
ldi
subi
sbci
lpm
ld
cpse r0, r1
rjmp
sbiw loophi:looplo, 1
brne Rdloop
; return to RWW section
; verify that RWW section is safe to read
in
sbrs
ret
; re-enable the RWW section
ldi
rcall
rjmp
; check for previous SPM complete
in
sbrc
rjmp
; input: spmcrval determines SPM action
; disable interrupts if enabled, store status
temp1, RWWSB
spmcrval, (1<<RWWSRE) | (1<<SPMEN)
Do_spm
looplo, low(PAGESIZEB)
loophi, high(PAGESIZEB)
r0, Y+
r1, Y+
spmcrval, (1<<SPMEN)
Do_spm
ZL, low(PAGESIZEB)
ZH, high(PAGESIZEB)
spmcrval, (1<<PGWRT) | (1<<SPMEN)
Do_spm
spmcrval, (1<<RWWSRE) | (1<<SPMEN)
Do_spm
looplo, low(PAGESIZEB)
loophi, high(PAGESIZEB)
YL, low(PAGESIZEB)
YH, high(PAGESIZEB)
r0, Z+
r1, Y+
Error
temp1, SPMCR
spmcrval, (1<<RWWSRE) | (1<<SPMEN)
Do_spm
Return
temp1, SPMCR
temp1, SPMEN
Wait_spm
; If RWWSB is set, the RWW section is not ready yet
;init loop variable
;not required for PAGESIZEB<=256
;use subi for PAGESIZEB<=256
;restore pointer
;not required for PAGESIZEB<=256
;init loop variable
;not required for PAGESIZEB<=256
;restore pointer
;use subi for PAGESIZEB<=256
2502G–AVR–04/05