ATMEGA64M1-15MZ Atmel, ATMEGA64M1-15MZ Datasheet - Page 177

• Manufacturer Part Number: ATMEGA64M1-15MZ
• Description: MCU AVR 64KB FLASH 3PSC 32-VQFN
• Manufacturer: Atmel
• Series: AVR® ATmegar

Specifications of ATMEGA64M1-15MZ

• Package / Case: 32-VQFN
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Operating Temperature: -40°C ~ 125°C
• Speed: 16MHz
• Eeprom Size: 2K x 8
• Core Processor: AVR
• Program Memory Type: FLASH
• Ram Size: 4K x 8
• Program Memory Size: 64KB (64K x 8)
• Data Converters: A/D 11x10b; D/A 1x10b
• Oscillator Type: Internal
• Peripherals: Brown-out Detect/Reset, POR, PWM, Temp Sensor, WDT
• Connectivity: CAN, LIN, SPI, UART/USART
• Core Size: 8-Bit
• Processor Series: ATMEGA64x
• Core: AVR8
• Data Bus Width: 8 bit
• Data Ram Size: 4 KB
• 3rd Party Development Tools: EWAVR, EWAVR-BL
• Development Tools By Supplier: ATAVRDRAGON, ATSTK500, ATSTK600, ATAVRISP2, ATAVRONEKIT, ATADAPCAN01
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Number Of I /o: -
• Lead Free Status / Rohs Status: Details

16.4.3
16.4.4
16.4.5
7647G–AVR–09/11
Notes: 1. Phase error < 0
Baud Rate
Fault Confinement
Overload Frame
5. Synchronization Segment: SYNS
2. Phase error > 0
3. Phase error > 0
4. Phase error < 0
Tsyns=1
x
Tscl (
CLK
Figure 16-8. General Structure of a Bit Period
With no baud rate prescaler (BRP[5..0]=0) the sampling point comes one time quantum too
early. This leads to a fail according the ISO16845 Test plan. It is necessary to lengthen the
Phase Segment 1 by one time quantum and to shorten the Phase Segment 2 by one time
quantum to compensate.
The baud rate selection is made by T
Notes:
(c.f.
An overload frame is sent by setting an overload request (OVRQ). After the next reception, the
CAN channel sends an overload frame in accordance with the CAN specification. A status or
flag is set (OVRF) as long as the overload frame is sent.
fixed
F
Data
1. Tsyns = 1 x Tscl = (BRP[5..0]+ 1)/clk
2. Tprs = (1 to 8) x Tscl = (PRS[2..0]+ 1) x Tscl
3. Tphs1 = (1 to 8) x Tscl = (PHS1[2..0]+ 1) x Tscl
4. Tphs2 = (1 to 8) x Tscl = (PHS2[2..0]
5. Tsjw = (1 to 4) x Tscl = (SJW[1..0]+ 1) x Tscl
CAN
)
IO
Section 16.7 “Error Management” on page
1. The total number of Tscl (Time Quanta) in a bit time must be from 8 to 25.
2. PHS2[2..0] 2 is programmable to be PHS1[2..0] and
Tsyns(5)
Tbit
(1)
1
/
CLK
= Tsyns + Tprs + Tphs1 + Tphs2
IO
Tscl (TQ)
Tprs
Atmel ATmega16/32/64/M1/C1
bit
Bit Rate Prescaler
calculation:
one nominal bit
IO
(2)
Tbit
+ 1) x Tscl
(= 1TQ)
183).
Tphs1+Tsjw
Tphs1
or
(
1
)
1.
(
3
Sample
)
Point
Tphs2+Tsjw
Tphs2
or
Transmission
(
2
)
(
4
)
Point
177