ATMEGA16M1-MU Atmel, ATMEGA16M1-MU Datasheet - Page 220

• Manufacturer Part Number: ATMEGA16M1-MU
• Description: IC MCU AVR 16K FLASH 32VQFN
• Manufacturer: Atmel
• Series: AVR® ATmegar

Specifications of ATMEGA16M1-MU

• Core Processor: AVR
• Core Size: 8-Bit
• Speed: 16MHz
• Connectivity: CAN, LIN, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, POR, PWM, Temp Sensor, WDT
• Program Memory Size: 16KB (8K x 16)
• Program Memory Type: FLASH
• Eeprom Size: 512 x 8
• Ram Size: 1K x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Data Converters: A/D 11x10b; D/A 1x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 32-VQFN Exposed Pad, 32-HVQFN, 32-SQFN, 32-DHVQFN
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Number Of I /o: -

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