ATmega32M1 Atmel Corporation, ATmega32M1 Datasheet - Page 220

• Manufacturer Part Number: ATmega32M1
• 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

20.6.5
20.6.6
220
ATmega16M1/32M1/64M1
LINBTR – LIN Bit Timing Register
LINBRR – LIN Baud Rate Register
• Bit 1 - LCERR: Checksum Error Flag
• Bit 0 - LBERR: Bit Error Flag
• Bit 7 - LDISR: Disable Bit Timing Re synchronization
• Bits 5:0 - LBT[5:0]: LIN Bit Timing
• Bits 15:12 - Reserved Bits
• Bits 11:0 - LDIV[11:0]: Scaling of clk
Bit
Read/Write
Initial Value
Bit
Bit
Read/Write
Initial Value
written to zero when LINBRR is written.
UART baud rate.
– 0 = No error
– 1 = Checksum error
– 0 = no error
– 1 = Bit error
– 0 = Bit timing re-synchronization enabled (default)
– 1 = Bit timing re-synchronization disabled
This bit is cleared when LERR bit in LINSIR is cleared.
This bit is cleared when LERR bit in LINSIR is cleared.
Gives the number of samples of a bit.
Default value: LBT[6:0]=32 — Min. value: LBT[6:0]=8 — Max. value: LBT[6:0]=63
These bits are reserved for future use. For compatibility with future devices, they must be
The LDIV value is used to scale the entering clk
LDISR
LDIV7
R/W
R/W
15
7
0
7
0
-
sample-time = (1/
LDIV6
R/W
14
R
6
0
6
0
-
-
R/(W)
LDIV5
LBT5
R/W
13
5
1
5
0
-
f
i/o
clk
R/(W)
LDIV4
LBT4
R/W
Frequency
12
4
0
i/o
4
0
-
) × (LDIV[11..0] + 1)
R/(W)
LDIV11
LBT3
LDIV3
R/W
3
0
11
3
0
i/o
frequency to achieve appropriate LIN or
R/(W)
LBT2
LDIV10
LDIV2
R/W
2
0
10
2
0
R/(W)
LBT1
LDIV1
LDIV9
R/W
1
0
1
9
0
R/(W)
LDIV0
LDIV8
LBT0
R/W
0
0
0
8
0
8209D–AVR–11/10
LINBRRL
LINBRRH
LINBTR