ATmega16M1 Automotive Atmel Corporation, ATmega16M1 Automotive Datasheet - Page 193
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ATmega16M1 Automotive
Manufacturer Part Number
ATmega16M1 Automotive
Description
Manufacturer
Atmel Corporation
Datasheets
1.AT90CAN128_AUTOMOTIVE.pdf
(225 pages)
2.ATMEGA16M1_AUTOMOTIVE.pdf
(12 pages)
3.ATMEGA16M1_AUTOMOTIVE.pdf
(25 pages)
4.ATMEGA16M1_AUTOMOTIVE.pdf
(367 pages)
Specifications of ATmega16M1 Automotive
Flash (kbytes)
16 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)
1
Eeprom (bytes)
512
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
14
Input Capture Channels
1
Pwm Channels
10
32khz Rtc
No
Calibrated Rc Oscillator
Yes
- AT90CAN128_AUTOMOTIVE PDF datasheet
- ATMEGA16M1_AUTOMOTIVE PDF datasheet #2
- ATMEGA16M1_AUTOMOTIVE PDF datasheet #3
- ATMEGA16M1_AUTOMOTIVE PDF datasheet #4
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- Download datasheet (7Mb)
16.10.9
7647G–AVR–09/11
CAN Bit Timing Register 2 - CANBT2
• Bit 6:1 – BRP5:0: Baud Rate Prescaler
The period of the CAN controller system clock Tscl is programmable and determines the indi-
vidual bit timing.
If ‘BRP[5..0]=0’, see
Sample Point(s)” on page
• Bit 0 – Reserved Bit
This bit is reserved for future use. For compatibility with future devices, it must be written to
zero when CANBT1 is written.
• Bit 7– Reserved Bit
This bit is reserved for future use. For compatibility with future devices, it must be written to
zero when CANBT2 is written.
• Bit 6:5 – SJW1:0: Re-Synchronization Jump Width
To compensate for phase shifts between clock oscillators of different bus controllers, the con-
troller must re-synchronize on any relevant signal edge of the current transmission.
The synchronization jump width defines the maximum number of clock cycles. A bit period
may be shortened or lengthened by a re-synchronization.
• Bit 4 – Reserved Bit
This bit is reserved for future use. For compatibility with future devices, it must be written to
zero when CANBT2 is written.
• Bit 3:1 – PRS2:0: Propagation Time Segment
This part of the bit time is used to compensate for the physical delay times within the network.
It is twice the sum of the signal propagation time on the bus line, the input comparator delay
and the output driver delay.
• Bit 0 – Reserved Bit
This bit is reserved for future use. For compatibility with future devices, it must be written to
zero when CANBT2 is written.
Tscl
Tsjw
Tprs
Initial Value
Read/Write
=
=
=
Bit
-------------------------------------- -
clk
Tscl
Tscl
BRP[5:0]
IO
frequency
PRS[2:0]
SJW[1:0]
+
7
-
-
-
1
Section 16.4.3 “Baud Rate” on page 177
+
+
SJW1
1
R/W
1
6
0
194.
SJW0
R/W
5
0
Atmel ATmega16/32/64/M1/C1
4
-
-
-
PRS2
R/W
3
0
PRS1
R/W
2
0
and
PRS0
R/W
Section • “Bit 0 – SMP:
1
0
0
-
-
-
CANBT2
193
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