ATmega32M1 Automotive Atmel Corporation, ATmega32M1 Automotive Datasheet - Page 139
ATmega32M1 Automotive
Manufacturer Part Number
ATmega32M1 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 ATmega32M1 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
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
- Current page: 139 of 367
- Download datasheet (7Mb)
14.5.3
14.5.3.1
7647G–AVR–09/11
Operation Mode Descriptions
One Ramp Mode (Edge-Aligned)
Figure 14-3. Cycle Presentation in Centered Mode
Figure 14-2
tered Mode is like One Ramp Mode which counts down and then up.
Notice that the update of the waveform generator registers is done regardless of ramp Mode
at the end of the PSC cycle.
Waveforms and duration of output signals are determined by parameters held in the registers
(POCRnSA, POCRnRA, POCRnSB, POCR_RB) and by the running mode. Two modes are
possible :
The following figure shows the resultant outputs PSCOUTnA and PSCOUTnB operating in
one ramp mode over a PSC cycle.
PSC Counter Value
• One Ramp Mode. In this mode, all the 3 PSCOUTnB outputs are edge-aligned and the 3
• Center Aligned Mode. In this mode, all the 6 PSC outputs are aligned at the center of the
PSCOUTnA can be also edge-aligned when setting the same values in the dedicated
registers.
In this mode, the PWM frequency is twice the Center Aligned Mode PWM frequency.
period. Except when using the same duty cycles on the 3 modules, the edges of the
outputs are not aligned. So the PSC outputs do not commute at the same time, thus the
system which is driven by these outputs will generate less commutation noise.
In this mode, the PWM frequency is twice slower than in One Ramp Mode.
and
Figure 14-3
graphically illustrate the values held in the PSC counter. Cen-
Atmel ATmega16/32/64/M1/C1
One PSC Cycle
UPDATE
139
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