ATmega32C1 Automotive Atmel Corporation, ATmega32C1 Automotive Datasheet - Page 196

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ATmega32C1 Automotive

Manufacturer Part Number
ATmega32C1 Automotive
Description
Manufacturer
Atmel Corporation

Specifications of ATmega32C1 Automotive

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 150
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
4
Input Capture Channels
1
Pwm Channels
4
32khz Rtc
No
Calibrated Rc Oscillator
Yes
16.10.17 CAN Page MOb Register - CANPAGE
16.11 MOb Registers
16.11.1
196
Atmel ATmega16/32/64/M1/C1
CAN MOb Status Register - CANSTMOB
• Bit 3:0 – CGP3:0: CAN General Purpose Bits
These bits can be pre-programmed to match with the wanted configuration of the CANPAGE
register (i.e., AINC and INDX2:0 setting).
• Bit 7:4 – MOBNB3:0: MOb Number
Selection of the MOb number, the available numbers are from 0 to 5.
Note:
• Bit 3 – AINC: Auto Increment of the FIFO CAN Data Buffer Index (Active Low)
• Bit 2:0 – INDX2:0: FIFO CAN Data Buffer Index
Byte location of the CAN data byte into the FIFO for the defined MOb.
The MOb registers has no initial (default) value after RESET.
• Bit 7 – DLCW: Data Length Code Warning
The incoming message does not have the DLC expected. Whatever the frame type, the DLC
field of the CANCDMOB register is updated by the received DLC.
• Bit 6 – TXOK: Transmit OK
This flag can generate an interrupt. It must be cleared using a read-modify-write software rou-
tine on the whole CANSTMOB register.
The communication enabled by transmission is completed. TxOK rises at the end of EOF field.
When the controller is ready to send a frame, if two or more message objects are enabled as
producers, the lower MOb index (0 to 14) is supplied first.
• Bit 5 – RXOK: Receive OK
This flag can generate an interrupt. It must be cleared using a read-modify-write software rou-
tine on the whole CANSTMOB register.
The communication enabled by reception is completed. RxOK rises at the end of the 6
EOF field. In case of two or more message object reception hits, the lower MOb index (0 to 14)
is updated first.
Initial Value
Initial Value
Read/Write
Read/Write
Bit
– 0 - auto increment of the index (default value).
– 1- no auto increment of the index.
Bit
MOBNB3 always must be written to zero for compatibility with all AVR CAN devices.
MOBNB3
DLCW
R/W
R/W
7
7
0
-
MOBNB2
TXOK
R/W
R/W
6
6
0
-
MOBNB1
RXOK
R/W
R/W
5
-
5
0
MOBNB0
BERR
R/W
R/W
4
-
4
0
SERR
R/W
AINC
R/W
3
-
3
0
CERR
INDX2
R/W
R/W
2
-
2
0
FERR
R/W
INDX1
R/W
1
-
1
0
AERR
R/W
INDX0
R/W
0
-
0
0
7647G–AVR–09/11
CANSTMOB
CANPAGE
th
bit of

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