AT90CAN32 Atmel Corporation, AT90CAN32 Datasheet - Page 19

• Manufacturer Part Number: AT90CAN32
• Manufacturer: Atmel Corporation

Specifications of AT90CAN32

• 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 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

4.2
7679H–CAN–08/08
SRAM Data Memory
Constant tables can be allocated within the entire program memory address space (see the
LPM – Load Program Memory and ELPM – Extended Load Program Memory instruction
description).
Timing diagrams for instruction fetch and execution are presented in
ing” on page
Figure 4-1.
Figure 4-2
The AT90CAN32/64/128 is a complex microcontroller with more peripheral units than can be
supported within the 64 locations reserved in the Opcode for the IN and OUT instructions. For
the Extended I/O space in SRAM, only the ST/STS/STD and LD/LDS/LDD instructions can be
used.
The lower data memory locations address both the Register File, the I/O memory, Extended I/O
memory, and the internal data SRAM. The first 32 locations address the Register File, the next
64 location the standard I/O memory, then 160 locations of Extended I/O memory, and the next
locations address the internal data SRAM (see “ISRAM size”).
An optional external data SRAM can be used with the AT90CAN32/64/128. This SRAM will
occupy an area in the remaining address locations in the 64K address space. This area starts at
the address following the internal SRAM. The Register file, I/O, Extended I/O and Internal SRAM
occupies the lowest bytes, so when using 64 KB (65,536 bytes) of External Memory,
“XMem size” bytes of External Memory are available. See
27
for details on how to take advantage of the external memory map.
shows how the AT90CAN32/64/128 SRAM Memory is organized.
14.
Program Memory Map
Application Flash Section
Boot Flash Section
Program Memory
“External Memory Interface” on page
AT90CAN32/64/128
0x0000
Flash end
“Instruction Execution Tim-
19