ATmega32M1 Atmel Corporation, ATmega32M1 Datasheet - Page 173
ATmega32M1
Manufacturer Part Number
ATmega32M1
Description
Manufacturer
Atmel Corporation
Specifications of ATmega32M1
Flash (kbytes)
32 Kbytes
Pin Count
32
Max. Operating Frequency
16 MHz
Cpu
8-bit AVR
# Of Touch Channels
12
Hardware Qtouch Acquisition
No
Max I/o Pins
27
Ext Interrupts
27
Usb Speed
No
Usb Interface
No
Spi
1
Uart
1
Can
1
Lin
1
Graphic Lcd
No
Video Decoder
No
Camera Interface
No
Adc Channels
11
Adc Resolution (bits)
10
Adc Speed (ksps)
125
Analog Comparators
4
Resistive Touch Screen
No
Dac Channels
1
Dac Resolution (bits)
10
Temp. Sensor
Yes
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
2
Output Compare Channels
14
Input Capture Channels
1
Pwm Channels
10
32khz Rtc
No
Calibrated Rc Oscillator
Yes
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
ATmega32M1-15AD
Manufacturer:
ATMEL
Quantity:
1 448
Part Number:
ATmega32M1-15AD
Manufacturer:
ATMEL/爱特梅尔
Quantity:
20 000
Company:
Part Number:
ATmega32M1-AU
Manufacturer:
TYCO
Quantity:
210
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19.6.1
19.6.2
19.6.2.1
19.6.2.2
19.6.2.3
8209D–AVR–11/10
Number of MObs
Operating Modes
Disabled
Tx Data & Remote Frame
Rx Data & Remote Frame
This device has 6 MObs, they are numbered from 0 up to 5 (i = 5).
There is no default mode after RESET.
Every MOb has its own fields to control the operating mode. Before enabling the CAN periph-
eral, each MOb must be configured (ex: disabled mode - CONMOB=00).
Table 19-1.
In this mode, the MOb is “free”.
1. Several fields must be initialized before sending:
2. The MOb is ready to send a data or a remote frame when the MOb configuration is set
3. Then, the CAN channel scans all the MObs in Tx configuration, finds the MOb having
4. When the transmission is completed the TXOK flag is set (interrupt)
5. All the parameters and data are available in the MOb until a new initialization
1. Several fields must be initialized before receiving:
MOb Configuration
0
0
1
1
– Identifier tag (IDT)
– Identifier extension (IDE)
– Remote transmission request (RTRTAG)
– Data length code (DLC)
– Reserved bit(s) tag (RBnTAG)
– Data bytes of message (MSG)
(CONMOB)
the highest priority and tries to send it
– Identifier tag (IDT)
– Identifier mask (IDMSK)
– Identifier extension (IDE)
– Identifier extension mask (IDEMSK)
– Remote transmission request (RTRTAG)
– Remote transmission request mask (RTRMSK)
– Data length code (DLC)
– Reserved bit(s) tag (RBnTAG)
MOb Configuration
0
1
0
1
Reply Valid
0
1
x
x
x
x
x
RTR Tag
x
0
1
0
1
x
ATmega16M1/32M1/64M1
Operating Mode
Disabled
Tx Data Frame
Tx Remote Frame
Rx Data Frame
Rx Remote Frame
Rx Remote Frame then, Tx Data Frame (reply)
Frame Buffer Receive Mode
173
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