AT90CAN32 Automotive Atmel Corporation, AT90CAN32 Automotive Datasheet - Page 336

• Manufacturer Part Number: AT90CAN32 Automotive
• Manufacturer: Atmel Corporation

Specifications of AT90CAN32 Automotive

• Flash (kbytes): 32 Kbytes
• Pin Count: 64
• Max. Operating Frequency: 16 MHz
• Cpu: 8-bit AVR
• # Of Touch Channels: 16
• Hardware Qtouch Acquisition: No
• Max I/o Pins: 53
• Ext Interrupts: 8
• Usb Speed: No
• Usb Interface: No
• Spi: 1
• Twi (i2c): 1
• Uart: 2
• Can: 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): 2
• Eeprom (bytes): 1024
• Self Program Memory: YES
• Dram Memory: No
• Nand Interface: No
• Picopower: No
• Temp. Range (deg C): -40 to 125
• I/o Supply Class: 2.7 to 5.5
• Operating Voltage (vcc): 2.7 to 5.5
• Fpu: No
• Mpu / Mmu: no / no
• Timers: 4
• Output Compare Channels: 8
• Input Capture Channels: 2
• Pwm Channels: 7
• 32khz Rtc: Yes
• Calibrated Rc Oscillator: Yes

25.2
336
Fuse Bits
AT90CAN32/64/128
Table 25-2.
Notes:
The AT90CAN32/64/128 has three Fuse bytes.
briefly the functionality of all the fuses and how they are mapped into the Fuse bytes. Note that
the fuses are read as logical zero, “0”, if they are programmed.
Table 25-3.
Note:
Table 25-4.
Fuse Extended Byte
–
–
–
–
BODLEVEL2
BODLEVEL1
BODLEVEL0
TA0SEL
Fuse High Byte
OCDEN
JTAGEN
SPIEN
WDTON
EESAVE
2
3
4
(1)
Memory Lock Bits
(4)
1. Program the Fuse bits and Boot Lock bits before programming the LB1 and LB2.
2. “1” means unprogrammed, “0” means programmed
1. See
(3)
(5)
(1)
(1)
(1)
Lock Bit Protection Modes
Extended Fuse Byte
Fuse High Byte
Table 7-2 on page 54
1
0
0
Bit No
7
6
5
4
3
Bit No
7
6
5
4
3
2
1
0
1
0
0
Description
Enable OCD
Enable JTAG
Enable Serial Program and
Data Downloading
Watchdog Timer always on
EEPROM memory is preserved
through the Chip Erase
Protection Type
SPM is not allowed to write to the Boot Loader section.
SPM is not allowed to write to the Boot Loader section, and LPM executing
from the Application section is not allowed to read from the Boot Loader
section. If Interrupt Vectors are placed in the Application section, interrupts
are disabled while executing from the Boot Loader section.
LPM executing from the Application section is not allowed to read from the
Boot Loader section. If Interrupt Vectors are placed in the Application
section, interrupts are disabled while executing from the Boot Loader
section.
Description
–
–
–
–
Brown-out Detector trigger level
Brown-out Detector trigger level
Brown-out Detector trigger level
(Reserved for factory tests)
for BODLEVEL Fuse decoding.
(1)(2)
(Continued)
Table
25-3,
Default Value
1 (unprogrammed, OCD disabled)
0 (programmed, JTAG enabled)
0 (programmed, SPI prog. enabled)
1 (unprogrammed)
1 (unprogrammed, EEPROM not preserved)
Table 25-4
Default Value
1
1
1
1
1 (unprogrammed)
1 (unprogrammed)
1 (unprogrammed)
1 (unprogrammed)
and
Table 25-5
7682C–AUTO–04/08
describe