ATMEGA169L-8MI Atmel, ATMEGA169L-8MI Datasheet - Page 264

• Manufacturer Part Number: ATMEGA169L-8MI
• Description: IC MCU AVR 16K LV 8MHZ IND 64QFN
• Manufacturer: Atmel
• Series: AVR® ATmegar

Specifications of ATMEGA169L-8MI

• Core Processor: AVR
• Core Size: 8-Bit
• Speed: 8MHz
• Connectivity: SPI, UART/USART, USI
• Peripherals: Brown-out Detect/Reset, LCD, POR, PWM, WDT
• Number Of I /o: 53
• Program Memory Size: 16KB (8K x 16)
• Program Memory Type: FLASH
• Eeprom Size: 512 x 8
• Ram Size: 1K x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 64-MLF®, 64-QFN
• For Use With: ATAVRISP2 - PROGRAMMER AVR IN SYSTEMATAVRBFLY - KIT EVALUATION AVR BUTTERFLYATSTK502 - MOD EXPANSION AVR STARTER 500
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: ATMEGA169L-4MI; ATMEGA169L-4MI

ATmega169 Boot Loader
Parameters
264
ATmega169V/L
In Table 113 through Table 115, the parameters used in the description of the Self-Pro-
gramming are given.
Table 113. Boot Size Configuration
Note:
Table 114. Read-While-Write Limit
Note:
BOOTS
Section
Read-While-Write section (RWW)
No Read-While-Write section (NRWW)
Z1
Do_spm:
Wait_spm:
Wait_ee:
1
1
0
0
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 Figure 116
1. For details about these two section, see “NRWW – No Read-While-Write Section” on
BOOTS
page 253 and “RWW – Read-While-Write Section” on page 253.
spmcrval, (1<<RWWSRE) | (1<<SPMEN)
temp1, SPMCSR
temp2, SREG
SPMCSR, spmcrval
SREG, temp2
Z0
1
0
1
0
words
words
words
words
Boot
1024
Size
128
256
512
Pages
16
2
4
8
(1)
(1)
Appli-
cation
Flash
Section
0x0000 -
0x1F7F
0x0000 -
0x1EFF
0x0000 -
0x1DFF
0x0000 -
0x1BFF
Boot
Loader
Flash
Section
0x1F80 -
0x1FFF
0x1F00 -
0x1FFF
0x1E00 -
0x1FFF
0x1C00
-
0x1FFF
Pages
112
16
End
Appli-
cation
Section
0x1F7F
0x1EFF
0x1DFF
0x1BFF
Address
0x0000 - 0x1BFF
0x1C00 - 0x1FFF
Boot Reset
Address (Start
Boot Loader
Section)
0x1F80
0x1F00
0x1E00
0x1C00
2514H–AVR–05/03