ATMEGA32L-8AUR Atmel, ATMEGA32L-8AUR Datasheet - Page 248
![no-image](/images/manufacturer_photos/0/0/78/atmel_sml.jpg)
ATMEGA32L-8AUR
Manufacturer Part Number
ATMEGA32L-8AUR
Description
MCU AVR 32K FLASH 8MHZ 44TQFP
Manufacturer
Atmel
Series
AVR® ATmegar
Specifications of ATMEGA32L-8AUR
Core Processor
AVR
Core Size
8-Bit
Speed
8MHz
Connectivity
I²C, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
32
Program Memory Size
32KB (16K x 16)
Program Memory Type
FLASH
Eeprom Size
1K x 8
Ram Size
2K 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
*
Package
44TQFP
Device Core
AVR
Family Name
ATmega
Maximum Speed
8 MHz
Operating Supply Voltage
3.3|5 V
Data Bus Width
8 Bit
Number Of Programmable I/os
32
Interface Type
TWI/SPI/USART
On-chip Adc
8-chx10-bit
Number Of Timers
3
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
- Current page: 248 of 346
- Download datasheet (6Mb)
Store Program
Memory Control
Register – SPMCR
2503Q–AVR–02/11
Table 97. Boot Reset Fuse
Note:
The Store Program Memory Control Register contains the control bits needed to control the Boot
Loader operations.
• Bit 7 – SPMIE: SPM Interrupt Enable
When the SPMIE bit is written to one, and the I-bit in the Status Register is set (one), the SPM
ready interrupt will be enabled. The SPM ready Interrupt will be executed as long as the SPMEN
bit in the SPMCR Register is cleared.
• Bit 6 – RWWSB: Read-While-Write Section Busy
When a self-programming (Page Erase or Page Write) operation to the RWW section is initiated,
the RWWSB will be set (one) by hardware. When the RWWSB bit is set, the RWW section can-
not be accessed. The RWWSB bit will be cleared if the RWWSRE bit is written to one after a
Self-Programming operation is completed. Alternatively the RWWSB bit will automatically be
cleared if a page load operation is initiated.
• Bit 5 – Reserved Bit
This bit is a reserved bit in the ATmega32 and always read as zero.
• Bit 4 – RWWSRE: Read-While-Write Section Read Enable
When programming (Page Erase or Page Write) to the RWW section, the RWW section is
blocked for reading (the RWWSB will be set by hardware). To re-enable the RWW section, the
user software must wait until the programming is completed (SPMEN will be cleared). Then, if
the RWWSRE bit is written to one at the same time as SPMEN, the next SPM instruction within
four clock cycles re-enables the RWW section. The RWW section cannot be re-enabled while
the Flash is busy with a page erase or a page write (SPMEN is set). If the RWWSRE bit is writ-
ten while the Flash is being loaded, the Flash load operation will abort and the data loaded will
be lost.
• Bit 3 – BLBSET: Boot Lock Bit Set
If this bit is written to one at the same time as SPMEN, the next SPM instruction within four clock
cycles sets Boot Lock bits, according to the data in R0. The data in R1 and the address in the Z-
pointer are ignored. The BLBSET bit will automatically be cleared upon completion of the Lock
bit set, or if no SPM instruction is executed within four clock cycles.
An LPM instruction within three cycles after BLBSET and SPMEN are set in the SPMCR Regis-
ter, will read either the Lock bits or the Fuse bits (depending on Z0 in the Z-pointer) into the
destination register. See
details.
Bit
Read/Write
Initial value
BOOTRST
1
0
1. “1” means unprogrammed, “0” means programmed
SPMIE
R/W
7
0
Reset Address
Reset Vector = Application reset (address $0000)
Reset Vector = Boot Loader reset (see
RWWSB
R
6
0
“Reading the Fuse and Lock Bits from Software” on page 252
(1)
R
5
0
–
RWWSRE
R/W
4
0
BLBSET
R/W
3
0
Table 99 on page
PGWRT
R/W
2
0
PGERS
R/W
1
0
255)
ATmega32(L)
SPMEN
R/W
0
0
SPMCR
248
for
Related parts for ATMEGA32L-8AUR
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
![ATMEGA32L](/images/manufacturer_photos/0/0/79/atmel_corporation_tmb.jpg)
Part Number:
Description:
Manufacturer:
ATMEL Corporation
Datasheet:
![ATMEGA32L-8AU](/photos/6/70/67042/313-44-tqfp_tmb.jpg)
Part Number:
Description:
IC AVR MCU 32K 8MHZ 3V 44TQFP
Manufacturer:
Atmel
Datasheet:
![ATMEGA32L-8MU](/photos/12/13/121316/313-44-qfn_tmb.jpg)
Part Number:
Description:
IC AVR MCU 32K 8MHZ 3V 44-QFN
Manufacturer:
Atmel
Datasheet:
![ATMEGA32L-8PU](/photos/6/70/67049/453-40-dip_tmb.jpg)
Part Number:
Description:
IC AVR MCU 32K 8MHZ 3V 40DIP
Manufacturer:
Atmel
Datasheet:
![ATMEGA32L-8PI](/photos/6/70/67049/453-40-dip_tmb.jpg)
Part Number:
Description:
IC AVR MCU 32K LV 8MHZ IND 40DIP
Manufacturer:
Atmel
Datasheet:
![ATMEGA32L-8AI](/photos/6/70/67042/313-44-tqfp_tmb.jpg)
Part Number:
Description:
IC AVR MCU 32K LV 8MHZ IND44TQFP
Manufacturer:
Atmel
Datasheet:
![ATMEGA32L-8MUR](/images/manufacturer_photos/0/0/78/atmel_tmb.jpg)
Part Number:
Description:
MCU AVR 32K FLASH 8MHZ 44QFN
Manufacturer:
Atmel
Datasheet:
![ATMEGA32L-8PC](/photos/6/70/67049/453-40-dip_tmb.jpg)
Part Number:
Description:
IC AVR MCU 32K LV 8MHZ COM 40DIP
Manufacturer:
Atmel
Datasheet:
![ATMEGA32L-8MC](/photos/12/13/121316/313-44-qfn_tmb.jpg)
Part Number:
Description:
IC AVR MCU 32K LV 8MHZ COM 44QFN
Manufacturer:
Atmel
Datasheet:
![ATMEGA32L-8AC](/photos/6/70/67042/313-44-tqfp_tmb.jpg)
Part Number:
Description:
IC AVR MCU 32K LV 8MHZ COM44TQFP
Manufacturer:
Atmel
Datasheet:
![ATMEGA32L-8MI](/photos/12/13/121316/313-44-qfn_tmb.jpg)
Part Number:
Description:
IC AVR MCU 32K LV 8MHZ IND 44QFN
Manufacturer:
Atmel
Datasheet:
![ATMEGA32L-8AJ](/photos/6/70/67042/313-44-tqfp_tmb.jpg)
Part Number:
Description:
IC MCU AVR 32K 5V 8MHZ 44-TQFP
Manufacturer:
Atmel
Datasheet: