AT90CAN64-16AUR Atmel, AT90CAN64-16AUR Datasheet - Page 348
AT90CAN64-16AUR
Manufacturer Part Number
AT90CAN64-16AUR
Description
MCU AVR 64K FLASH 16MHZ 64TQFP
Manufacturer
Atmel
Series
AVR® 90CANr
Datasheet
1.AT90CAN32-16AUR.pdf
(428 pages)
Specifications of AT90CAN64-16AUR
Core Processor
AVR
Core Size
8-Bit
Speed
16MHz
Connectivity
CAN, EBI/EMI, I²C, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
53
Program Memory Size
64KB (64K x 8)
Program Memory Type
FLASH
Eeprom Size
2K x 8
Ram Size
4K 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-TQFP, 64-VQFP
Data Bus Width
8 bit
Data Ram Size
4 KB
Mounting Style
SMD/SMT
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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25.6.13
25.6.14
25.7
25.7.1
348
SPI Serial Programming Overview
AT90CAN32/64/128
Reading the Signature Bytes
Reading the Calibration Byte
Signal Names
Figure 25-6. Mapping Between BS1, BS2 and the Fuse and Lock Bits During Read
The algorithm for reading the Signature bytes is as follows (refer to
page 342
The algorithm for reading the Calibration byte is as follows (refer to
page 342
This section describes how to serial program and verify Flash Program memory, EEPROM Data
memory, Memory Lock bits, and Fuse bits in the AT90CAN32/64/128.
Both the Flash and EEPROM memory arrays can be programmed using the serial SPI bus while
RESET is pulled to GND. The serial interface consists of pins SCK, MOSI (input) and MISO (out-
put). After RESET is set low, the Programming Enable instruction needs to be executed first
before program/erase operations can be executed. NOTE, in
mapping for SPI programming is listed. Not all parts use the SPI pins dedicated for the internal
SPI interface. Note that throughout the description about Serial downloading, MOSI and MISO
are used to describe the serial data in and serial data out respectively. For AT90CAN32/64/128
these pins are mapped to PDI (PE0) and PDO (PE1).
1. A: Load Command “0000 1000”.
2. B: Load Address Low Byte (0x00 - 0x02).
3. Set OE to “0”, and BS1 to “0”. The selected Signature byte can now be read at DATA.
4. Set OE to “1”.
1. A: Load Command “0000 1000”.
2. B: Load Address Low Byte, 0x00.
3. Set OE to “0”, and BS1 to “1”. The Calibration byte can now be read at DATA.
4. Set OE to “1”.
for details on Command and Address loading):
for details on Command and Address loading):
Extended Fuse Byte
Fuse High Byte
Fuse Low Byte
Lock Bits
BS2
BS2
0
1
0
1
BS1
Table 25-13 on page
0
1
“Programming the Flash” on
“Programming the Flash” on
DATA
7679H–CAN–08/08
349, the pin
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