AT90CAN64 Atmel Corporation, AT90CAN64 Datasheet - Page 351

• Manufacturer Part Number: AT90CAN64
• Manufacturer: Atmel Corporation

Specifications of AT90CAN64

• Flash (kbytes): 64 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): 4
• Eeprom (bytes): 2048
• Self Program Memory: YES
• Dram Memory: No
• Nand Interface: No
• Picopower: No
• Temp. Range (deg C): -40 to 85
• 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

Table 25-15. Serial Programming Instruction Set
7679H–CAN–08/08
Instruction
Programming
Enable
Chip Erase
Read
Program Memory
Load
Program Memory
Page
Write
Program Memory
Page
Read
EEPROM Memory
Write
EEPROM Memory
Set
a = address high bits, b = address low bits, H = 0 - Low byte, 1 - High Byte, o = data out, i = data in, x = don’t care
1010 1100 0101 0011 xxxx xxxx xxxx xxxx Enable Serial Programming after RESET goes low.
1010 1100 100x xxxx xxxx xxxx xxxx xxxx Chip Erase EEPROM and Flash.
0010 H000 aaaa aaaa bbbb bbbb oooo oooo
0100 H000 000x xxxx xbbb bbbb iiii iiii
0100 1100 aaaa aaaa bxxx xxxx xxxx xxxx Write Program Memory Page at address a:b.
1010 0000 000x aaaa bbbb bbbb oooo oooo Read data o from EEPROM memory at address a:b.
1100 0000 000x aaaa bbbb bbbb iiii iiii Write data i to EEPROM memory at address a:b.
Byte 1
are meant to contain 0xFF, can be skipped. This does not apply if the EEPROM is re-pro-
grammed without chip erasing the device. In this case, data polling cannot be used for the value
0xFF, and the user will have to wait at least t
Table 25-14
Table 25-14. Minimum Wait Delay Before Writing the Next Flash or EEPROM Location
Figure 25-8. Serial Programming Waveforms
Symbol
t
t
t
t
WD_FUSE
WD_FLASH
WD_EEPROM
WD_ERASE
SERIAL DA TA OUTPUT
SERIAL CLOCK INPUT
Byte 2
Instruction Format
SERIAL DA TA INPUT
for t
(2)
WD_EEPROM
(MISO-PDO)
(MOSI-PDI)
Sample
(SCK)
Byte 3
value.
(1)
MSB
MSB
Byte4
WD_EEPROM
Operation
Read H (high or low) data o from Program memory at
word address a:b.
Write H (high or low) data i to Program Memory page
at word address b. Data low byte must be loaded
before Data high byte is applied within the same
address.
Minimum Wait Delay
(1)
before programming the next byte. See
AT90CAN32/64/128
4.5 ms
4.5 ms
9.0 ms
9.0 ms
LSB
LSB
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