ATmega32C1 Automotive Atmel Corporation, ATmega32C1 Automotive Datasheet - Page 146

• Manufacturer Part Number: ATmega32C1 Automotive
• Manufacturer: Atmel Corporation

Specifications of ATmega32C1 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: 4
• Input Capture Channels: 1
• Pwm Channels: 4
• 32khz Rtc: No
• Calibrated Rc Oscillator: Yes

14.9
14.9.1
14.9.1.1
146
PSC Input
Atmel ATmega16/32/64/M1/C1
PSC Input Configuration
Filter Enable
For detailed information on the PSC, please refer to Application Note ‘AVR138: PSC Cook-
book’, available on the Atmel web site.
Each module 0, 1 and 2 of PSC has its own system to take into account one PSC input.
According to PSC Module n Input Control Register
– PMICn” on page
Each block A or B is also configured by this PSC Module n Input Control Register (PMICn).
Figure 14-10. PSC Input Module
The PSC Input Configuration is done by programming bits in configuration registers.
If the “Filter Enable” bit is set, a digital filter of 4 cycles is inserted before evaluation of the sig-
nal. The disable of this function is mainly needed for prescaled PSC clock sources, where the
noise cancellation gives too high latency.
Important: If the digital filter is active, the level sensitivity is true also with a disturbed PSC
clock to deactivate the outputs (emergency protection of external component). Likewise when
used as fault input, PSC Module n Input A or Input B have to go through PSC to act on
PSCOUTn0/1/2 outputs. This way needs that CLK
nous Output Control bit (PAOCnA/B), PSCINn input can desactivate directly the PSC outputs.
Notice that in this case, input is still taken into account as usually by Input Module System as
soon as CLK
PSCINn
Analog
Comparator
n Output
PISELnA
(PISELnB)
PSC
0
1
PELEVnA /
(PELEVnB)
is running.
155.), PSCINn input can act has a Retrigger or Fault input.
PRFMnA3:0
(PRFMnB3:0)
PCAEnA
(PCAEnB)
Digital
Filter
CLK
PSC
PAOCnA
(PAOCnB)
PFLTEnA
(PFLTEnB)
0
1
CLK
CLK
2
4
PSC
PSC
Input
Processing
(retriggering ...)
PSC Core
(Counter,
Waveform
Generator, ...)
PSC
(See “PSC Module n Input Control Register
is running. So thanks to PSC Asynchro-
Control
of the
6 outputs
7647G–AVR–09/11
PSCOUTnA
PSCOUTnB